{
  "manageEntity": {
    "action": "Delete",
    "entityId": "455986981",
    "entityType": "Track",
    "nonce": "0x90738f9a0986cd94cd5f7d811d9810ee870bb035c1b7c4f4fbeae7e5034da6a9",
    "signature": "0xe0a20c0e992b43d2e4da41537469e5cd9a7af8101d3507f0a739dd8501035fd717317c2c92bc746d8b29e242b35fe4b95348b264b892ff00dcca77c54fbf98ba1c",
    "signer": "0x9152687Dc451F79C5722e6869B7266819895b279",
    "userId": "500693164"
  }
}