{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x0f2a283ea9e9ee0987429e385453a1c23e1de9ea725b374ada78dbdeaa54ee25",
    "signature": "0x639e9cb2b477669c1ca4f27d576065c9525ddd3da95b72e08aafd87481ccef6138ec6fa5180d359318b094899ece5587ba47332fed56f345921e7efd27b1be4f1b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}