{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "51345",
    "entityType": "User",
    "nonce": "0xb45e9b41b1815d1c60e6ee54436e9b86a0a6ec4adcfa5db9556b6f99d039e366",
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    "signer": "0x3256Bd2D0B1984E7df4FA525017aD9bA48470760",
    "userId": "51"
  }
}