/pairing/start is not working

invoking curl -k -H "Content-Type: application/json" -X PUT -d '{"DEVICE_ID":"12345","DEVICE_NAME":"cURL Example"}' https://192.168.1.13:7345/pairing/start

TV displays the PIN, but https response is not correct. Always getting {"STATUS":{"RESULT":"FAILURE","DETAIL":"Failure"}}

As I am not getting PAIRING_REQ_TOKEN in the response, its a hard stop.

Anything I am missing?
