diff --git a/dao-api/src/main/pegasus/com/linkedin/metadata/internal/IngestionParams.pdl b/dao-api/src/main/pegasus/com/linkedin/metadata/internal/IngestionParams.pdl
index 6b5676a4e..2231ae56f 100644
--- a/dao-api/src/main/pegasus/com/linkedin/metadata/internal/IngestionParams.pdl
+++ b/dao-api/src/main/pegasus/com/linkedin/metadata/internal/IngestionParams.pdl
@@ -2,7 +2,7 @@ namespace com.linkedin.metadata.internal
 
 import com.linkedin.metadata.events.IngestionMode
 import com.linkedin.metadata.events.IngestionTrackingContext
-import pegasus.com.linkedin.metadata.events.IngestionAspectETag
+import pegasus.com.linkedin.metadata.aspect.RequestMetadata
 
 /**
  * Record defining ingestion-related parameters that can be passed into DAO API calls.
@@ -25,7 +25,7 @@ record IngestionParams {
   testMode: boolean = false
 
   /**
-   * eTag for aspect ingestion optimistic locking
+   * Metadata for API request
    */
-  ingestionETags: optional array[IngestionAspectETag] = [ ]
+  request_metadata: optional RequestMetadata
 }
\ No newline at end of file
diff --git a/dao-api/src/main/pegasus/pegasus/com/linkedin/metadata/aspect/AspectMetadata.pdl b/dao-api/src/main/pegasus/pegasus/com/linkedin/metadata/aspect/AspectMetadata.pdl
new file mode 100644
index 000000000..f032f7b27
--- /dev/null
+++ b/dao-api/src/main/pegasus/pegasus/com/linkedin/metadata/aspect/AspectMetadata.pdl
@@ -0,0 +1,18 @@
+namespace pegasus.com.linkedin.metadata.aspect
+
+/**
+ * *
+ * Metadata associated with an aspect
+ */
+record AspectMetadata {
+
+  /**
+   * aspect alias name
+   */
+  alias: optional string = ""
+
+  /**
+   * used for optimistic locking in update API
+   */
+  etag: optional string = ""
+}
\ No newline at end of file
diff --git a/dao-api/src/main/pegasus/pegasus/com/linkedin/metadata/aspect/RequestMetadata.pdl b/dao-api/src/main/pegasus/pegasus/com/linkedin/metadata/aspect/RequestMetadata.pdl
new file mode 100644
index 000000000..93389286f
--- /dev/null
+++ b/dao-api/src/main/pegasus/pegasus/com/linkedin/metadata/aspect/RequestMetadata.pdl
@@ -0,0 +1,13 @@
+namespace pegasus.com.linkedin.metadata.aspect
+
+/**
+ * *
+ * Metadata for API request
+ */
+record RequestMetadata {
+
+  /**
+   * * Aspect metadata map
+   */
+  aspect_metadata: optional array[AspectMetadata] = [ ]
+}
\ No newline at end of file
diff --git a/dao-api/src/main/pegasus/pegasus/com/linkedin/metadata/aspect/ResponseMetadata.pdl b/dao-api/src/main/pegasus/pegasus/com/linkedin/metadata/aspect/ResponseMetadata.pdl
new file mode 100644
index 000000000..f46399f08
--- /dev/null
+++ b/dao-api/src/main/pegasus/pegasus/com/linkedin/metadata/aspect/ResponseMetadata.pdl
@@ -0,0 +1,13 @@
+namespace pegasus.com.linkedin.metadata.aspect
+
+/**
+ * *
+ * Metadata for API response
+ */
+record ResponseMetadata {
+
+  /**
+   * * Aspect metadata map
+   */
+  aspect_metadata: optional array[AspectMetadata] = [ ]
+}
\ No newline at end of file
diff --git a/dao-api/src/main/pegasus/pegasus/com/linkedin/metadata/events/IngestionAspectETag.pdl b/dao-api/src/main/pegasus/pegasus/com/linkedin/metadata/events/IngestionAspectETag.pdl
deleted file mode 100644
index a962b9ac3..000000000
--- a/dao-api/src/main/pegasus/pegasus/com/linkedin/metadata/events/IngestionAspectETag.pdl
+++ /dev/null
@@ -1,17 +0,0 @@
-namespace pegasus.com.linkedin.metadata.events
-
-/**
- * eTag used for atomic aspect updating
- */
-record IngestionAspectETag {
-
-  /**
-   * aspect field name, e.g. "status"
-   */
-  aspect_alias: optional string = ""
-
-  /**
-   * e.g. used for optimistic locking when writing new aspect value
-   */
-  etag: optional string = ""
-}
\ No newline at end of file
diff --git a/dao-impl/ebean-dao/src/main/java/com/linkedin/metadata/dao/EbeanLocalDAO.java b/dao-impl/ebean-dao/src/main/java/com/linkedin/metadata/dao/EbeanLocalDAO.java
index 196e379ba..e2ac7328e 100644
--- a/dao-impl/ebean-dao/src/main/java/com/linkedin/metadata/dao/EbeanLocalDAO.java
+++ b/dao-impl/ebean-dao/src/main/java/com/linkedin/metadata/dao/EbeanLocalDAO.java
@@ -68,8 +68,8 @@
 import javax.persistence.Table;
 import lombok.Value;
 import lombok.extern.slf4j.Slf4j;
-import pegasus.com.linkedin.metadata.events.IngestionAspectETag;
-import pegasus.com.linkedin.metadata.events.IngestionAspectETagArray;
+import pegasus.com.linkedin.metadata.aspect.AspectMetadata;
+import pegasus.com.linkedin.metadata.aspect.RequestMetadata;
 
 import static com.linkedin.metadata.dao.EbeanLocalAccess.*;
 import static com.linkedin.metadata.dao.EbeanMetadataAspect.*;
@@ -619,10 +619,10 @@ public <ASPECT extends RecordTemplate> AuditStamp extractOptimisticLockForAspect
 
     AuditStamp optimisticLockAuditStamp = null;
 
-    final IngestionAspectETagArray ingestionAspectETags = ingestionParams.getIngestionETags();
+    final RequestMetadata requestMetadata = ingestionParams.getRequest_metadata();
 
-    if (ingestionAspectETags != null) {
-      for (IngestionAspectETag ingestionAspectETag: ingestionAspectETags) {
+    if (requestMetadata != null && requestMetadata.getAspect_metadata() != null) {
+      for (AspectMetadata aspectMetadata: requestMetadata.getAspect_metadata()) {
 
         final String aspectAlias;
 
@@ -632,8 +632,8 @@ public <ASPECT extends RecordTemplate> AuditStamp extractOptimisticLockForAspect
           continue;
         }
 
-        if (aspectAlias != null && aspectAlias.equalsIgnoreCase(ingestionAspectETag.getAspect_alias())) {
-          Long decryptedETag = getDecryptedETag(ingestionAspectETag);
+        if (aspectAlias != null && aspectAlias.equalsIgnoreCase(aspectMetadata.getAlias())) {
+          Long decryptedETag = getDecryptedETag(aspectMetadata);
           if (decryptedETag != null) {
             optimisticLockAuditStamp = new AuditStamp();
             optimisticLockAuditStamp.setTime(decryptedETag);
@@ -649,12 +649,12 @@ public <ASPECT extends RecordTemplate> AuditStamp extractOptimisticLockForAspect
    * When eTag is null, it means this is a regular ingestion request, no read-modify-write consistency guarantee.
    */
   @Nullable
-  private Long getDecryptedETag(@Nonnull IngestionAspectETag ingestionAspectETag) {
+  private Long getDecryptedETag(@Nonnull AspectMetadata aspectMetadata) {
     try {
-      if (ingestionAspectETag.getEtag() == null) {
+      if (aspectMetadata.getEtag() == null) {
         return null;
       }
-      return ETagUtils.decrypt(ingestionAspectETag.getEtag());
+      return ETagUtils.decrypt(aspectMetadata.getEtag());
     } catch (Exception e) {
       return null;
     }
diff --git a/dao-impl/ebean-dao/src/test/java/com/linkedin/metadata/dao/EbeanLocalDAOTest.java b/dao-impl/ebean-dao/src/test/java/com/linkedin/metadata/dao/EbeanLocalDAOTest.java
index 48fa71b46..bf9c47205 100644
--- a/dao-impl/ebean-dao/src/test/java/com/linkedin/metadata/dao/EbeanLocalDAOTest.java
+++ b/dao-impl/ebean-dao/src/test/java/com/linkedin/metadata/dao/EbeanLocalDAOTest.java
@@ -115,8 +115,9 @@
 import org.testng.annotations.DataProvider;
 import org.testng.annotations.Factory;
 import org.testng.annotations.Test;
-import pegasus.com.linkedin.metadata.events.IngestionAspectETag;
-import pegasus.com.linkedin.metadata.events.IngestionAspectETagArray;
+import pegasus.com.linkedin.metadata.aspect.AspectMetadata;
+import pegasus.com.linkedin.metadata.aspect.AspectMetadataArray;
+import pegasus.com.linkedin.metadata.aspect.RequestMetadata;
 
 import static com.linkedin.common.AuditStamps.*;
 import static com.linkedin.metadata.dao.internal.BaseGraphWriterDAO.RemovalOption.*;
@@ -4190,13 +4191,17 @@ public void testExtractOptimisticLockForAspectFromIngestionParamsIfPossible()
 
     FooUrn urn = new FooUrn(1);
 
-    IngestionAspectETag ingestionAspectETag = new IngestionAspectETag();
-    ingestionAspectETag.setAspect_alias("aspectFoo");
     long timestamp = 1750796203701L;
-    ingestionAspectETag.setEtag("KsFkRXtjaBGQf37HjdEjDQ==");
+
+    AspectMetadata aspectMetadata = new AspectMetadata();
+    aspectMetadata.setAlias("aspectFoo");
+    aspectMetadata.setEtag("KsFkRXtjaBGQf37HjdEjDQ==");
+
+    RequestMetadata requestMetadata = new RequestMetadata();
+    requestMetadata.setAspect_metadata(new AspectMetadataArray(aspectMetadata));
 
     IngestionParams ingestionParams = new IngestionParams();
-    ingestionParams.setIngestionETags(new IngestionAspectETagArray(ingestionAspectETag));
+    ingestionParams.setRequest_metadata(requestMetadata);
 
     AuditStamp result = dao.extractOptimisticLockForAspectFromIngestionParamsIfPossible(ingestionParams, AspectFoo.class,
         urn);
@@ -4224,12 +4229,15 @@ public void testExtractOptimisticLockForAspectFromIngestionParamsIfPossibleAspec
 
     FooUrn urn = new FooUrn(1);
 
-    IngestionAspectETag ingestionAspectETag = new IngestionAspectETag();
-    ingestionAspectETag.setAspect_alias("aspectBar");
-    ingestionAspectETag.setEtag("KsFkRXtjaBGQf37HjdEjDQ==");
+    AspectMetadata aspectMetadata = new AspectMetadata();
+    aspectMetadata.setAlias("aspectBar");
+    aspectMetadata.setEtag("KsFkRXtjaBGQf37HjdEjDQ==");
+
+    RequestMetadata requestMetadata = new RequestMetadata();
+    requestMetadata.setAspect_metadata(new AspectMetadataArray(aspectMetadata));
 
     IngestionParams ingestionParams = new IngestionParams();
-    ingestionParams.setIngestionETags(new IngestionAspectETagArray(ingestionAspectETag));
+    ingestionParams.setRequest_metadata(requestMetadata);
 
     AuditStamp result = dao.extractOptimisticLockForAspectFromIngestionParamsIfPossible(ingestionParams, AspectFoo.class,
         urn);