{
"manageEntity": {
"action": "Save",
"entityId": "68646230",
"entityType": "Track",
"nonce": "0xf6f3a96a8c17c27f2d106d66499d61e236c79fdadb59eea20fbb70dc6fb0991d",
"signature": "0xa576e841e18d5f1aab87dbcc746eada8241137da8a6f80ebbd8468f85a9e13ef779068a46b301aec4f9f3c63de1593aadd8e54e386fdc2ce94122bd5ca6e329b1b",
"signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
"userId": "620307004"
}
}