{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe7c97e18578b812298b18c21542b4df89b5a2de9f1568b1f2a76bd966bf79b1f",
    "signature": "0xbdb631b0b09c9d30e00318f5c9e5a58df3395162fb70b7cd334f3781b4aca01872be508f12f6c124bfcaa7ff2c8daee933f4951c7ab484bbd8c9f41674c106401b",
    "signer": "0x16741B6206B1898558AAd9b1FA3d2E2d94277708",
    "userId": "622688980"
  }
}