xlm Horizon could not decode the transaction envelope

[jc0803kevin]

try {
            String privateKeyHex = "xxxxxxx";

            Stellar.SigningInput signingInput = Stellar.SigningInput.newBuilder()
                    .setAccount("GBNLZDHAKGHNXFOK5C62LSZKGUXOS537DD3CATRGLDILY6ZW2NIOIVCG")
                    .setSequence(148541486881832960L)
                    .setMemoId(Stellar.MemoId.newBuilder()
                            .setId(412106)
                        .build())
                    .setOpPayment(Stellar.OperationPayment.newBuilder()
                            .setAmount(100)
                            .setDestination("GDP34WXZRCSHVUDQLGKJKOBMS5LOQPHCIADZU5POEF3IICZ7XNQJ65Y6")
                            .setAsset(Stellar.Asset.newBuilder()
                                    .setIssuer("GA5XIGA5C7QTPTWXQHY6MCJRMTRZDOSHR6EFIBNDQTCQHG262N4GGKTM")
                                    .build())
                    .build())
//                    .setMemoText(Stellar.MemoText.newBuilder()
//                            .setText("412106")
//                            .build())
//                    .setMemoVoid(Stellar.MemoVoid.newBuilder()//表示没有标签地址
//                            .build())
                    .setPassphrase(StellarPassphrase.STELLAR.toString())
                    .setPrivateKey(ByteString.copyFrom(Hex.decodeHex(privateKeyHex)))
                    .setFee(20)
                    .build();

            System.out.println("signingInput hex : \n" + Hex.encodeHexString(signingInput.toByteArray()));

            Stellar.SigningOutput signingOutput = AnySigner.sign(signingInput, CoinType.STELLAR, Stellar.SigningOutput.parser());

            System.out.println("signingOutput hex : \n" + Hex.encodeHexString(signingOutput.toByteArray()));

            System.out.println("signingOutput base64 : \n" + Base64.encodeBase64String(signingOutput.toByteArray()));

        } catch (Exception e) {
            e.printStackTrace();
        }

signingInput hex :
08141080808080a0b6ee87021a3847424e4c5a4448414b47484e58464f4b354336324c535a4b4755584f5335333744443343415452474c44494c59365a57324e494f495643472220ddd2794d01f0440e6db37490426be5001e58aceb55261c02d7d56bead040e2932a2e5075626c696320476c6f62616c205374656c6c6172204e6574776f726b203b2053657074656d62657220323031353a780a38474450333457585a52435348565544514c474b4a4b4f424d53354c4f515048434941445a5535504f4546334949435a37584e514a36355936123a0a3847413558494741354337515450545758514859364d434a524d54525a444f53485236454649424e445154435148473236324e3447474b544d18645a0408ca9319
signingOutput hex :
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
signingOutput base64 :
CpACQUFBQUFGcThqT0JSanR1Vnl1aTlwY3NxTlM3cGQzOFk5aUJPSmxqUXZIczIwMURrQUFBQUZBSVB1YklBQUFBQUFBQUFBQUFBQUFJQUFBQUFBQVpKeWdBQUFBRUFBQUFBQUFBQUFRQUFBQURmdmxyNWlLUjYwSEJabEpVNExKZFc2RHppUUFlYWRlNGhkb1FMUDd0Z253QUFBQUFBQUFBQUFBQUFaQUFBQUFBQUFBQUJOdE5RNUFBQUFFQ1FEay81N2RRcGVKK2t3ZHBtL1VyQlp1Qm1JaFo1U29LcWg0MkNmOVRSUWlsVzkyNlBreEY5SmRRNm5OakhYdkd2NDU2RHgwU1lmanVEdkIyMkdaTUo=

签名完之后广播失败

{
  "type": "https://stellar.org/horizon-errors/transaction_malformed",
  "title": "Transaction Malformed",
  "status": 400,
  "detail": "Horizon could not decode the transaction envelope in this request. A transaction should be an XDR TransactionEnvelope struct encoded using base64.  The envelope read from this request is echoed in the `extras.envelope_xdr` field of this response for your convenience.",
  "extras": {
    "envelope_xdr": "CpACQUFBQUFGcThqT0JSanR1Vnl1aTlwY3NxTlM3cGQzOFk5aUJPSmxqUXZIczIwMURrQUFBQUZBSVB1YklBQUFBQUFBQUFBQUFBQUFJQUFBQUFBQVpKeWdBQUFBRUFBQUFBQUFBQUFRQUFBQURmdmxyNWlLUjYwSEJabEpVNExKZFc2RHppUUFlYWRlNGhkb1FMUDd0Z253QUFBQUFBQUFBQUFBQUFaQUFBQUFBQUFBQUJOdE5RNUFBQUFFQ1FEay81N2RRcGVKK2t3ZHBtL1VyQlp1Qm1JaFo1U29LcWg0MkNmOVRSUWlsVzkyNlBreEY5SmRRNm5OakhYdkd2NDU2RHgwU1lmanVEdkIyMkdaTUo="
  }
}

请问签名完成之后得到的如何转成响应的stellar xdr transaction 格式

[hewigovens]

we don't support decoding to xdr format, please don't create such issue, it's not a bug or feature request

[jc0803kevin]

那trust wallet 签名完成的xlm 交易如何广播出去呢？