{
"manageEntity": {
"action": "Save",
"entityId": "79081972",
"entityType": "Track",
"nonce": "0xc73af18c2167732df9cab47969ca65b883bf9e2ff4f39f865687ae346221d80f",
"signature": "0x7eab226a436c5961a555eb396ab247570654b67d048e5bacdbc7e0bc45bcee4e38bfd95faf512170e4a4fb745795b4057813da62cf765035f34e68778738e22f1b",
"signer": "0xF7628Ea36C0C266E289b7538b033fB949A6C31ff",
"userId": "386745392"
}
}