Can you pass a JObject in the body of a HTTP request?

I am string to pass a JObject to an HTTP API specifically SmartSheet API. I am able to use a GET request just fine and get the information i need with no problem. The issue is when i use a post request UIPath requires the body to be a string format but when i send the string it get an error code from SmartSheet saying errorCode 1008 Request body must be either JSON Object or JSON Array. But i can only pass the string otherwise uipath errors out and says i must convert to string. Any ideas of what to do here?