{
  "manageEntity": {
    "action": "Save",
    "entityId": "35380",
    "entityType": "Track",
    "nonce": "0xe90695d7a1bbb4705756fdfd9abdd610133772ee3f7781d9c9aa28060f28ff19",
    "signature": "0xc5545fb8a2ac325bc31d1abd31d90f191a6539e0024be0ad2bc28044d8354cd802ec95c1934e0e0a2583cae8a2ef492576535c81958300ddb6ac18042d602d6b1b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}