{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77604",
    "entityType": "User",
    "nonce": "0x82458c345fdc25f502ad0edf86ff8b8cdfb5b5fb8f02f24cfa074b111f760848",
    "signature": "0xf49594b7d001a7f456e979ef120c80cd1732777759d6a1d2ae322ab59bfd58f875e66412df9fc71fd3584da906cb574368aebcc0556d965cb84d38d380b211e31b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}