{
  "manageEntity": {
    "action": "Delete",
    "entityId": "768385671",
    "entityType": "Track",
    "nonce": "0x563e9bf9cb0028e42e484635167f9a564fb3ffb6462d47cc3525ec875ebf6e1c",
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    "signer": "0xd12A323399559A3773F865c8F21031bc39c29135",
    "userId": "219968466"
  }
}