{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8aa0c7058870b735bd4edd58046a2fd8df09387fcb214e4b44d8f6c4c81652b3",
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    "signer": "0x5E2573da6AB2d9DE6F1896b40DAB3558B017D1E0",
    "userId": "753786222"
  }
}