{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "976719636",
    "entityType": "User",
    "nonce": "0x9b61183fa0324af403dd9e2ee8699b9123f9e221289e6b5d22731528d6b8c7f9",
    "signature": "0xf6acf810b9c5f89eef6b4ba9c855eb6140d88b92c16a782dedf3284384c28cf178871ab874b7535ce2feb06934264c5f7d984a94379e821809e5e9a99e69f11b1c",
    "signer": "0x03b70C3825d7b9e568C53C89a738061d855d0dec",
    "userId": "578849678"
  }
}