{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "444242968",
    "entityType": "User",
    "nonce": "0xb217324b9081c5150342d5096988afd745e867ca62fc0b304ba9f3e574db3590",
    "signature": "0xcf3ae39476ffa792824591e8545d99de223f270a48b70aafaa58138dd511945619a1a4c04fbfb3403355f7ba1cbf5c7ed682e19da5c53bd8857124be7db905fa1c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}