{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4300af1467d3c0382be7498acd08f7df4b8601b1748d2a26d73e9d2c61faf555",
    "signature": "0x8f55f5442931f175f7b2f65c68234b734da1ad330b399eedc1a4c64afd939e57607682fe293612b2ccb93a67a76dd974bd444a22e4bd12c1b24c7e94eaa803c21b",
    "signer": "0xb05ab7862d5c0A5C350916924A7ad984777c9454",
    "userId": "776151516"
  }
}