{
  "message": "<string>",
  "object": {
    "email": "<string>",
    "roles": [
      "<string>"
    ],
    "preferences": {}
  }
}

{
  "status": "<string>",
  "context": {},
  "type": "<string>",
  "title": "<string>",
  "detail": "<string>",
  "violations": [
    {
      "title": "<string>",
      "propertyPath": "<string>",
      "type": "<string>"
    }
  ]
}