{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x31df3a03e65170595891d74a843c74b541f85064431d06b8c0c929d5777473e8",
    "signature": "0xde4c24ac0851629a4401d2ffcbfae0cdd0acff439c724615a1235e94a92eef821e107c1641119b1a02bffd3c3be51badbe44f52d7adc124b7316a4cf22de10211c",
    "signer": "0xA49Ea05Fb50d75D15fFDC8Fd7e1567FAa66E8b3c",
    "userId": "406866433"
  }
}