{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "837777538",
    "entityType": "User",
    "nonce": "0xb57d465af272a76ca525f8ef80167ea129b1b69012e13a841948e215261b6bfe",
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    "signer": "0x040629E31a68119093b9a0111257C8449c2f8e10",
    "userId": "20"
  }
}