{
  "manageEntity": {
    "action": "Delete",
    "entityId": "1415280289",
    "entityType": "Track",
    "nonce": "0x002e67d13fd9adc34a77f8f8f80ebe6bccd15fcc1cc412cdd9fd1559f680f111",
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    "signer": "0x40EFf0Eb130a38e1B561ed4F77f6bA796cF62a6d",
    "userId": "973205835"
  }
}