{
"manageEntity": {
"action": "Save",
"entityId": "1780338948",
"entityType": "Track",
"nonce": "0xc2921595f34108a1587be8e98309f9bf7f4c3028d58c3917026bb8ee3b8f7d3b",
"signature": "0x57b7d3be39faf7c2da279b24c0a8daf88a9d5fa063b706ffd0a5066ec6aa8c724bb0b69427f938d10732e85777a10aa7ead3abf0f33c72a11517592b4dc2ecf81c",
"signer": "0xa22176a11BF6703EFe39D488aA7cC06aa781C44A",
"userId": "633924738"
}
}