{
  "manageEntity": {
    "action": "Save",
    "entityId": "1761056016",
    "entityType": "Track",
    "nonce": "0xf41513d08e9a57a92ea42a4e5dcf7b3d3fb6f12d5541d6e8a77c248a8dc2e9e6",
    "signature": "0xa271778f5ff8d6d3921e0f2e3c49d385dd111722896d3b7466569c624b72eb9159e0f0af7b71f7e28a8f3f07dcdc9c178935f843204fc196183adf9722e581581b",
    "signer": "0xDC5D8e6d43489811098d4d3D31fB7D6585c9Bb31",
    "userId": "735980234"
  }
}