How to get the response from my API workflow to Data bindings

This is in relation of my first ticket:

I would also like to ask if how would I get the response from my apiAthenticate (on the left side) to the data bindings (right-side). I would love to put the result of my access token from my server/workflow apiAuthenticate TO my headers in my API data source. Is that possible?

The apiAuthenticate results are not on my data bindings for my api data source.

This is my apiAuthenticate:

Thank you!