{
"manageEntity": {
"action": "Save",
"entityId": "1029540956",
"entityType": "Track",
"nonce": "1792530589284768790",
"signature": "0xf6b500d14956d2d50f365e1e057a4ee6715cfbc97faf6d1712f9fb9b538ffd9d0d3c83841a262a81119edb1eab71328584ca6b5fa94945c1000ec1bbcdbc2f4a1b",
"signer": "0xd30fAF377491796757Ef4C1B0ccA8a407920e663",
"userId": "451691735"
}
}