{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "675830993",
    "entityType": "User",
    "nonce": "0xffc14339a79dacd69544c51a3eac1e5d6ca5cadb2eb9037daf5cdbe589d2fae8",
    "signature": "0x40319f0b599a7d5d28d1b2190677fd1af828a22444fae3f4d222849024ab6a465e9e67c85a3b56d2c5ad2b5dbd9564e58c795e22665dc3c252aa1349a08c30d81b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}