{
  "manageEntity": {
    "action": "Save",
    "entityId": "1767289960",
    "entityType": "Track",
    "nonce": "0xcd11bc9394dd8afde11040f67a9b7d2475cfc6eeec40ef0534df86cf79824f56",
    "signature": "0x3231f428a3ac87fd50ecebfe452650bf97ff305cc9e549581348dcc62965f9334aeb31d6b14b2b65630186a526517539eebbf48cdff3ec1fa357b0b2281f28421b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}