{
  "manageEntity": {
    "action": "Delete",
    "entityId": "263643481",
    "entityType": "Track",
    "nonce": "0x282e9983059f27c5d37dc050b2ccb01000c902c1b49a93022c5883a3ba3f9182",
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    "signer": "0x5E7ca035944bA78C6Eb25Ae014171cb0E017c6d5",
    "userId": "683518262"
  }
}