How to insert a Token into Power Automate's HTTP API call?

Hello dear Personio Community .. I would really appreciate your help, for using the Personio API with Power Automate.  The calls described below work fine with Postman, but somehow I am not managing through “a flow”:  How 

1. Generate the Token (this works; but is not elegant) .. is working:

   

2. and then JSON parsed and handed on to next request

   

   
    
3. but then .. how do I enter the One-Time Token in Power Automate?
   this is not working … 

   

    

..this is the successful call via Postman

… and also successful via Personio’s page (developer.personio.de/reference/get_company-employees) ..