{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x4661dbf9c3ebdb23128211103b1d71d7ae00ac6aa358a89326d871218a9a503b",
    "signature": "0x12ba62cf1e584f48e3db0633fe3b98976a0bfe9fcb7b87cd1815f4e9559940dc520ede599f946fa4bf54a70c0323fe541cb653a0d0a06d17912bb94a8ecc4bae1c",
    "signer": "0x4bab5Cd522B53b8B987980041e9789631B6a50C1",
    "userId": "627782178"
  }
}