{
"manageEntity": {
"action": "Save",
"entityId": "1314320381",
"entityType": "Track",
"nonce": "0x53360c5cff517c859712a0c725eff080010896cb6c810cab204307ffe8d98b55",
"signature": "0xf60a1378a8e9c3860d1b8de548ef63428bafa38fb05053dc29b5a2bfa594fae349c8a9fb41f7e723ee75857ef99ec10074d87979aaad79ac06207693587f0d5e1b",
"signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
"userId": "887547386"
}
}