Result from GET

{
  "responseId":"5bc57a1be4e56",
  "version":1,
  "success":false,
  "error":[
    "Invalid request"
  ],
  "info":[
    "Typical syntax: \/version\/subject\/identifier or \/v1\/oauth\/authenticate. See http:\/\/www.sendcastle.com\/en\/documentation\/api for more information"
  ]
}