{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "543934154",
    "entityType": "User",
    "nonce": "0x830dd83c838cd49195259801b810f9b8f81e52743992d796e8aaf9569af7efa2",
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    "signer": "0x03eBd76f03fee1b68d042AE492e5168848BEb443",
    "userId": "180170571"
  }
}