Json invalid error while calling a REST HTTP request API

Hello there,

I am using the HTTP request command to call an API from Monkey learn website service for extracting keywords from a DATA or TEXT. It takes input as a JSON value and returns an output, But while POSTing the request I am getting an error stating-

Error-
{ status_code: 422, error_code: REQUEST_PARAM_PARSE, detail: This endpoint requires a JSON object body. }

JSON input I am giving-

{“data”:[“Elon Musk has shared a photo of the spacesuit designed by SpaceX. This is the second image shared of the new design and the first to feature the spacesuit’s full-body look.”]} .

I have checked and validated JSON object in an online validator and found it a valid one.

Please help me out resolving this issue.

I also wanted to ask same Question