{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "373162",
    "entityType": "User",
    "nonce": "0xa9acb95343094e142935ecf9263d43e3b48c338f1981f8d59205060af9af1557",
    "signature": "0x06be4db36c07623ec3ce3fab1c271ec0e1c8ae8c8a7aed1b0dfbbc3c9db1e5c924ac9a3ba1d73cd2a1fe490d13d117529ea04417190e82216a8761e6da1fe0971b",
    "signer": "0x57Ad6E2E3fFc5ABe9b5FE7DC3bF7c07c8cCf9Ccf",
    "userId": "571702334"
  }
}