Invoking Rest adapter from Bpel and pass the xml data in the request body

Hi,

Below is my requirement to call the external rest service. For reference i have attached the POSTMAN request screen shot on what data to be passed.

1) 2 field in the Params.

2) xml content in the request body (We dont have the json format).

In Rest Adapter configuration i can see options only to send the request params but not the request body.

Problem: In Jdeveloper Rest Adapter configuration where and which option we should choose to send the content in the request body along with the params.