Request Body: 
{"grant_type":"client_credentials"}
Response Body: 
{"responseCode":"4007302","responseMessage":"Invalid Mandatory Field X-SIGNATURE"}
Request Body: 
{"grant_type":"client_credentials"}
Response Body: 
{"responseCode":"4007302","responseMessage":"Invalid Mandatory Field X-SIGNATURE"}
Request Body: 
{"grant_type":"client_credentials"}
Response Body: 
{"responseCode":"4007302","responseMessage":"Invalid Mandatory Field X-SIGNATURE"}
snap bi response = stdClass Object
(
    [responseCode] => 4007302
    [responseMessage] => Invalid Mandatory Field X-SIGNATURE
)