How to send a simple text via rest without a body in OIC?

Summary:

I'm trying to integrate with the Oracle Cx sales products API so I'm using the following API in the enclosure part:

ttps://customerEnvironment:443/crmRestApi/resources/11.13.18.05/products/300000002344284/enclosure/Especificacoes_c

In postman if I do it as a put as the documentation suggests, just passing a simple text in my body I can send my text normally. follow the documentation:

I'm using OIC to create this request and I can't generate a connection in which I can pass simple text in its body.

I tested using an xml and it sends, in addition to the text, the entire body with the xml in its submission, for JSON it was the same behavior it sent, for example: