{
  "className": "JoystreamMediaLocation",
  "newProperties": [
    {
      "name": "dataObjectId",
      "description": "Id of the data object in the Joystream runtime dataDirectory module",
      "property_type": { "Single": { "Text": 48 } },
      "required": true,
      "unique": true,
      "locking_policy": { "is_locked_from_controller": true }
    }
  ]
}
