{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe68b22219c75f8f94faa5c662eecd2cbc7decbe695ee7e8fc4143fef03c24ef9",
    "signature": "0x1fa79cceba55a9669e426e8aa0082ab41b7ed18a7aae6a62195ff00469e16a3976df3356fd6a717b4a02ec0363deef0b3ddbefd52e19afc605477a44dfc7fc401b",
    "signer": "0xf42a63fbb9612088982fB8E87AeB969981A95D7e",
    "userId": "454548360"
  }
}