{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "510814511",
    "entityType": "User",
    "nonce": "0xaa8bb38b1e66fa51f78fbe39b0680fa32ebec8c10b832f450bafecc7b8f408d8",
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    "signer": "0x040629E31a68119093b9a0111257C8449c2f8e10",
    "userId": "20"
  }
}