{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "499",
    "entityType": "User",
    "nonce": "0x44197b72f813712fe4904cdc8c86eac2fd5f7d358147ed04858bcf387b48421e",
    "signature": "0x314fc0434ea89d4b5908041cd9803856e7bc95356e5be4db9fa0492908c7646e012798b05531f69d55ed50bea922da5b17c7f74d1bd8c13245eb6fb1c57bbcab1c",
    "signer": "0x053AE6b4e0E1ca4c355a1f76Ce5696623A43A617",
    "userId": "79438"
  }
}