{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "214443",
    "entityType": "User",
    "nonce": "0x669fe8feb0c966f0b3498807871f77b22bb3f72d626d6dfe0cc920a6e0319589",
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    "signer": "0x53C34E921c42894040432aB319b21B4822eE12c9",
    "userId": "578231820"
  }
}