{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x7bac331bef99b3468b38263e7d898a4496ca7e8ea884ae9d9b090f070e935ae0",
    "signature": "0x56ec0c6670957ba59c79f0a469255e4f6382145361d43469ae49a82a8d46f30565ce91b67961e34a085d320824d561bf4ef9254d307eeefa15fb309a4fee4a5d1b",
    "signer": "0x61759FD9d69b6C29FE84fc39eaB6C50Cf7dCd8FC",
    "userId": "366953361"
  }
}