{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "493345562",
    "entityType": "User",
    "nonce": "0x1b2d48d4e92a6e47b168282750c17cc2ea4c29af33fa7f4306ca20f1c0f80fb4",
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    "signer": "0x3256Bd2D0B1984E7df4FA525017aD9bA48470760",
    "userId": "51"
  }
}