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.

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This is my apiAuthenticate:

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Thank you!