{
  "id": "unique-int",
  "timestamp": "unix-timestap (of when created)",
  "user_id": "int (of post author)",
  "type": "image | text | video | external-media",
  "attachments": [
    {
      "type": "image",
      "id": 1,
      "title": "string",
      "url": "string"
    },
    {
      "type": "tweet",
      "id": 2,
      "content": "string",
      "url": "string"
    }
  ],
  "segment_id": "int",
  "chapter_id": "int",
  "location": "string"
}