How to bring API JSON text into REST Post Snap?

Hi all,

I am trying to use a JSON file to feed in the body of a response that is working in Postman with curl code like this:

In SnapLogic I added the raw body in a JSON generator and want to feed that into a REST Post Snap. My pipeline looks like this:

With no headers nor queries in Postman, only the JSON/raw body and the service URL, I retrieve results with no issues. However, with Snaplogic I am not receiving output. Has anyone done this? I am told I cannot incorporate the credentials into the headers, it must be in the body…but how do I reconcile this with SnapLogic? No one on my team has worked on something externalized that has functioned in this way.

Thanks!