Unnecessary overhead due to Jackson serialization in all entities

[snazy]

Describe the bug

The generic property bags properties and internalProperties are persisted as strings, which contain the JSON serialized representation of both property bags.

Each time a call site requests any of these property bags, the JSON representation is being parsed.

This behavior is quite expensive.

How entities and their attributes are persisted should really be up to the actual persistence implementation.

To Reproduce

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Actual Behavior

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Expected Behavior

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Additional context

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System information

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