{
  "manageEntity": {
    "action": "Save",
    "entityId": "1692235195",
    "entityType": "Track",
    "nonce": "0x159ae74eca26c5ee232cea8d4d62b313bac597f4682acde1bd28b43d66e4bbee",
    "signature": "0xa5b735f0812bea162d0a0a680097db0c61effb707dd8a84c1c680fffc2f0b54608b9169f5574e01aba7631d6fa32719b1cf403c5aba8f6790fda31ac409483991b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}