{
  "manageEntity": {
    "action": "Save",
    "entityId": "60836038",
    "entityType": "Track",
    "nonce": "1792346714819748636",
    "signature": "0x15c487ccf70bcdb05297fefd4522583a33ac4f5de987dc189282db4c4ea466a9051bd523d3eee8fddde4eff820bc6c599bead466ff6bc2f0e8ebb1971d44cca91b",
    "signer": "0x6620103988B969bE5810F1B5530c1A44Fe6048A1",
    "userId": "568518925"
  }
}