Set Dynamic Inputs Inside body (JSON) of external API request

Hello,

I am currently playing around with openAi. I'm trying to make an external API request via their cURL command.

In the body of the call, I need to send JSON. I'm trying to use input values or variables and insert them into the JSON in the body of the API call.

Is this possible in Xano? I tried figuring it out but I cannot seem to find a solution