{
"manageEntity": {
"action": "Save",
"entityId": "1634666353",
"entityType": "Track",
"nonce": "0x17a3c4fda25fe9f16671fdd2148591b0359f21305f58eada3f2ecda82f582a8c",
"signature": "0xebdd99a2a757ce65e81974c0951ad14a846c11bdabc86c47c363d74db46b069f67a08002ae3815ac1854c61b4259fe7436035f11a8de5397ec6b4ea5d36a13d21b",
"signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
"userId": "714646433"
}
}