{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "43430",
    "entityType": "User",
    "nonce": "0xb52c21b6f29ea9c8e70afa9a4ab1ed9954916a6786a2da85934e962620222f40",
    "signature": "0x13d318f27524ccf707ab93a61a1c31ff260324ed8a8441667eb808bd2664ba130813b536f09943fcd2abeee013cfd826bd266173e9cb0e3e9507df04bf71a8b41c",
    "signer": "0x65EB59bb6C92a37Ff6b3c51d34c0aD3607F751cb",
    "userId": "305838"
  }
}