Http Request json body to twitter api

I have an error when I used a variable in the properties of http request body. When I do not use the variable it is working fine.

This is the the json without a variable which working fine and post a tweet. I get this from twitter api documentations.

{“text”: “Hello World”, “media”: {“media_ids”: [“1111111111111111111”]}}

And this is the code with a variable:

“{”“text”“: “”” + strTweet.ToString + “”“,”“media”" {““media_ids””: [“”“+ mediaId.ToString +”“”]}}"

And this is the error response:

{“errors”:[{“message”:“Request body is not valid JSON.”}],“title”:“Invalid Request”,“detail”:“One or more parameters to your request was invalid.”,“type”:“Twitter API Response Codes & Error Support | Twitter Developer Platform”}

@imnewtorpa
Welcome to the forum

can you check for the missing :after media

done with:
Understanding the 6 Debugging Panels of UiPath in the easiest way possible! - News / Tutorials - UiPath Community Forum

Thank you for looking into that missing colon, However I have still encountering the same error even it fixed the missing :.

Please check the screenshot for the log of the json body and the response.