{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "881446128",
    "entityType": "User",
    "nonce": "0xd4329731111af3387f1d94d7d2c69ee240a2f70304786a1d25cf13edad6a0ae4",
    "signature": "0x92706fdfabb42585f337eb06ebb15e2de6c12be38288fdee2d1506a14f8b73db46f6a8ca2a6e41bc3802e5adeb63b417e08f7e5c92bfd41625e5e1cf1bcf623b1b",
    "signer": "0x5458796027aD8A259861E2C65ECFD1B027e9E8fA",
    "userId": "42614"
  }
}