{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "171892",
    "entityType": "User",
    "nonce": "0x79534b89d68b200d4a4aada04f6c8603d32c242c3d3e90cc7c31f3c155c599b1",
    "signature": "0x16d852e8d48ff2a94db92b1c70b2f2e76ee708d89d6017714d076f52a612898026134cbca6ecc6bc3d082b990b5ee4b96d32105691c827b4d6f5594b0109530c1c",
    "signer": "0xb10C19C3B0cAC7fCec2A27C480820d724C82840d",
    "userId": "341801"
  }
}