如何在HttpContent中发布Json并在API控制器中解析它？

I am wanting to take JSON, put it in a StringContent and pass it to my API. From there, i am wanting to deserialize the JSON back over to a class and use it from there. Currently i am getting an error for trying to deserialize which from what i can tell, the logInfo is empty when reaching the API. When i try writing out the parameter, it's empty in the event log. See the Consumer and API Code below.I am wanting to take JSON, put it in a StringCo