[
  {
    "uid": { "__entity": { "type": "User", "id": "alice"} },
    "attrs": {},
    "parents": []
  },
  {
    "uid": { "__entity": { "type": "User", "id": "jane"} },
    "attrs": {},
    "parents": []
  },
  {
    "uid": { "__entity": { "type": "User", "id": "bob"} },
    "attrs": {
      "department": "research"
    },
    "parents": []
  },
  {
    "uid": { "__entity": { "type": "Album", "id": "jane"} },
    "attrs": {},
    "parents": []
  },
  {
    "uid": { "__entity": { "type": "Photo", "id": "VacationPhoto94.jpg"} },
    "attrs": {},
    "parents": [
      { "__entity": { "type": "Album", "id": "jane"} }
    ]
  },
  {
    "uid": { "__entity": { "type": "Photo", "id": "Skyline.jpg"} },
    "attrs": {
      "public": true
    },
    "parents": [
      { "__entity": { "type": "Album", "id": "jane"} }
    ]
  }
]