{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0x80f99c773ec284866c7367a2cf01613791bdc341712c6e6750d60784d57591f5",
    "signature": "0x2ff034b411e18dda2959ea073cee3ce6dd66f4d510145a93f6e04242f8759fbf3c2e44b9630480cf1339719f8ded2bb8fe13ecefd637f2c45aecebec29bf68911b",
    "signer": "0x31fdBb0E5a7aAAe160b470d8DC722F86D8fDA857",
    "userId": "458302619"
  }
}