{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "75740",
    "entityType": "User",
    "nonce": "0x08a6c540a9f4d2bbf05c15fabd106aab32cd08540f260c702096969072fd8d2f",
    "signature": "0xbf3cb17e29b0245de116a94ec1a19b50f9233c276a00f9f42d06106000f34f6b1ee6f9dcfb63f3fd9cf56f8d28d2bb829cb60d4af6513b65acc15aee8e1c00831c",
    "signer": "0x48c4F1C0d0cbFF1115450a2547577c3B18D8febb",
    "userId": "642037758"
  }
}