{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1140957157c994302941071db1a62b7fce74af63661c89efa2782839456c0c84",
    "signature": "0xdaa01f3b3e50c414f69f1335e2020e422d88a19a153f9dabfc2ad3fca9d9a33661d76df8627d14b386ea9470b6c32a3436fb7aa3f8febb0398caf055c75ebff01b",
    "signer": "0x746B1d493E99C6707925CcadD98c1cBe4B90895f",
    "userId": "608120852"
  }
}