{
  "manageEntity": {
    "action": "Save",
    "entityId": "1039175824",
    "entityType": "Track",
    "nonce": "0x05fe6f4504eb1dcacb0c9b1217870f05042614c31c105ef34a442a396de34275",
    "signature": "0x14d627d5dfff80149a4b9f4c3223a7b5a9e79a0120b0cedab08ae4c3ede6efe84e3405adf67163fd05ea54a14eccb07a35349568afa0b938b7beba725b1262ea1b",
    "signer": "0x283a6Fd0bE176865B404dfc3B2805D3a2701d62e",
    "userId": "484365174"
  }
}