{
  "manageEntity": {
    "action": "Save",
    "entityId": "1716135327",
    "entityType": "Track",
    "nonce": "0x35b39431add888afee42ad811974601ca8a6020e6208163708c56e472d6480f8",
    "signature": "0x247a46f15a594d9672de915e101f2519fa7ca5eaba8eb6d9424279b81e5c1a2e1735567411323d7cee05948ac21b645749e46027943d3770bb15f1501420fbac1c",
    "signer": "0xb6B208a8f79b1D88d245afa5aDB0a40d38cd6DD1",
    "userId": "528688046"
  }
}