Store an object for a Rest request

Is there a way to store an object for a rest request which can then be used in an Entity, something similar to ERXThreadStorage which works for a particular thread/session.

Basically I want to store the User object for a request, and then use in in some Entity accessor methods.

I thought of using ERXRestContext but there doesn't seem to be any way to get to that from the entity.

Thanks,

Anil
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