Get user-role assignment by ID

{
  "id": "497f6eca-6276-4993-bfeb-53cbbbba6f08",
  "user_id": "a169451c-8525-4352-b8ca-070dd449a1a5",
  "role_id": "ac4e70c8-d5be-48af-93eb-760f58fc91a9",
  "created_at": "2019-08-24T14:15:22Z",
  "created_by": "ee824cad-d7a6-4f48-87dc-e8461a9201c4",
  "modified_at": "2019-08-24T14:15:22Z",
  "modified_by": "e8d4374d-93a1-4e98-a6c6-fdcf00c5059f",
  "active": true,
  "metadata": {}
}

{
  "status": 400,
  "message": "Role name cannot be empty"
}

{
  "status": 401,
  "message": "Unauthorized"
}

{
  "status": 403,
  "message": "Forbidden"
}

{
  "status": 404,
  "message": "Role not found"
}

{
  "status": 500,
  "message": "server_error"
}