ERP Adapter User Assertion

Summary:

Is there a way to pass the current logged in user while making calls to Fusion end points from ERP Adapter connection. As far as I know the userid is specified during the setup of the connection and thats the identity that gets passed on to fusion. However we have a use case where any Fusion CRUD operations are initiated in OIC using ERP Adapter, we want to capture in Fusion, the userid who initiated the operation instead of the user id specified in the OIC connection.. Would like to hear from folks who have encountered similar use