{
  "manageEntity": {
    "action": "Save",
    "entityId": "235800098",
    "entityType": "Track",
    "nonce": "0x9b6a17b7098c6743e2adb82c97f363f093f903830bed135f0f2e192b04d80dd1",
    "signature": "0x668fdc18404838cf6eaadad72b9e957e91119f7800b37966e8553ba6046746da32af21338327ed9fc9f12a85f350e826912611346e394a9bd5aba6b7dfcc67451b",
    "signer": "0x24844077bE6bb825c0548F36B4EFA030d05Ee1CD",
    "userId": "601282125"
  }
}