The actor of the change triggering this notification

Type: object

Attribute	Type	Description
user	User	User object

Example

{
  "user": {
    "id": "5d9caaecb4a3fa9bc9718686",
    "email": "[email protected]",
    "username": "zozo",
    "emotar": "🍎",
    "avatar": "http://placekitten.com/200/300",
    "last_seen": 1616739240
  }
}