[
  {
    "identity": "cms-reader",
    "role": "reader"
  },
  {
    "identity": "cms-author-a",
    "role": "author"
  },
  {
    "identity": "cms-author-b",
    "role": "author"
  },
  {
    "identity": "cms-editor",
    "role": "editor"
  }
]