{
  "manageEntity": {
    "action": "Delete",
    "entityId": "1990529197",
    "entityType": "Track",
    "nonce": "0xece915147629a702d506dcfa4a84df3a04f703d767971e5f5d09e2e11b487393",
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    "signer": "0xc4A500E17D812B285447720CCcb7F8eB148c91bd",
    "userId": "256479919"
  }
}