Problem in calling rest api of Adobe E Sign for POST method

Hi Experts,

I have consume the REST API of adobe e-sign for uploading the document by using the POST method.

I have tested it by using the POSTMAN tool and its working fine there but how to build the same request through ABSL.

In the below screen the request accept one header parameter with access token and remaining parameter in body.

In ABSL i have build the header parameters,communication scenario,Http method and all other parameters as required for rest API call but how to build the body for this request as it is showing form-data.

Thanks,

Siraj.