{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "477003",
    "entityType": "User",
    "nonce": "0xe59a4bb11ba9721f6b2e9c8be3bdbfb6ffdeb4331eba1e441bf8263083194aa3",
    "signature": "0x675bbf52277102acce4424b3c418a6c367fcc56b2e809a130501879d035b910e67042613035961a9b7265904cf5728a18a2d4dc55582e387c8f81d21b48ab90c1b",
    "signer": "0xFA54BdDbc2fd0fA514bA36393EF2F5a80Ee9C49b",
    "userId": "428192787"
  }
}