{
  "manageEntity": {
    "action": "Save",
    "entityId": "1059424",
    "entityType": "Track",
    "nonce": "0xdfe4292be7022faa914362337fc265691553442b283a86f786abc22f96f3b38e",
    "signature": "0x6edd2c28ca4607f0428f9fca900436d4af05455813a8a0825016b83628d7b51b60274452615225d117218d4ecb7fb9a314f197adb04c8298459e5040c148070d1c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}