{
"manageEntity": {
"action": "Save",
"entityId": "20828943",
"entityType": "Track",
"nonce": "0x416286ac345a2b9aff7a4eebb622a9cc7d8da3afe23efe419c6d3fae10532c38",
"signature": "0xa87ed20c7f13cfa2514fc667268f421a8a0b560c71143c4936c5ed4730150f086b01ac17ab5e7ee3dc68657ad84ebc4ae4a110c0945b6e69dcfa7809e9686fc01c",
"signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
"userId": "571117272"
}
}