{
  "manageEntity": {
    "action": "Delete",
    "entityId": "642375221",
    "entityType": "Track",
    "nonce": "0xd9c68ecb9018f066b052ff665ab7799b6c585b869bb22de77e61d9a61bd3b7e7",
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    "signer": "0x752C90C920139AF65038fD352aCb4C538F644549",
    "userId": "378729142"
  }
}