{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4c5a823f93a61b8df29b2105949ee001a61d6672bf40fd20181aec618f863870",
    "signature": "0x9d2370f87dc18ff718c6c07c84c055f8fe72b479b3b2c3d348cacbd5a1b3307c33bfc4d415900c05e8e23e51c99842e95dbbb3aa0f966edcf0bc7bb0e0c87d261c",
    "signer": "0x0a16ff54Eb914E641937363B59e02e40be83Eb39",
    "userId": "162998725"
  }
}