{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "849530",
    "entityType": "User",
    "nonce": "0x5d71cf0ce32bf3c8c75ca37b26ad92ff1a13fc1111048f589432df1e33bb4fb0",
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    "signer": "0x3256Bd2D0B1984E7df4FA525017aD9bA48470760",
    "userId": "51"
  }
}