{
  "manageEntity": {
    "action": "Delete",
    "entityId": "306628593",
    "entityType": "Track",
    "nonce": "0xdc224408e95df1e37407da427a73bf543ef97a9641d262c35f88f60aa8427687",
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    "signer": "0xD1e78d368b6e1BA9c3281E18c08B03ccc78b50EA",
    "userId": "509716406"
  }
}