{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0xbd63a774e88d1a21c3e83fbfe227691148c67d9d1c3230c96eb816d383b1b6cb",
    "signature": "0x482cab70900397fad94b6d27a692dd3d4b5b41578421b415b783bc1374e7f657394337cfa56538bc94a5185bc314db67b82973a7b5b596c82a7fb939a549fd451b",
    "signer": "0xbF77B5D53Bb50fC77c2B56253239CC16Fdcb558c",
    "userId": "736937284"
  }
}