{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "139567",
    "entityType": "User",
    "nonce": "0x5a5cb75c18cdc83467f85cdd954ee3f5163928ce1024c6bb9db8cf515c6df9a8",
    "signature": "0xb5bd84d786da68fedb74a04b716946116775ecc38d7e2d1dad6f1fb2a9326bb8542292a1772235175df7e7a3aee66fe520127de2d3c211e166f9dfa381f6c23f1c",
    "signer": "0x1Fea0fA17c32fD36403e7b0aACB3845AE7a167CA",
    "userId": "450050052"
  }
}