{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x92bf64b9cf6c37f8c85ba164e9e7b4c7862a97546f267c1044f1c0a7ea8ccc1b",
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    "signer": "0xFF7e16013e133D06e819eD7BdAd3004cF033dc01",
    "userId": "186410626"
  }
}