{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "456716469",
    "entityType": "User",
    "nonce": "0x36639c5b653c6aee96723595afcccf6aed0282de9f1bdb3e411f8e91816afc9a",
    "signature": "0xae8ecdcfd46d7f32e3b7a22f949e5f2fe0d23098780f9c63f999610c8d4b4d27606cc5ebce544e4d8da7315528892e9ad53742cac7a5258477c67e867da50de71c",
    "signer": "0x044FC5a5dDb09Fd969Ac4aa606CddF360FE384dC",
    "userId": "144585121"
  }
}