{
"manageEntity": {
"action": "Save",
"entityId": "53374814",
"entityType": "Track",
"nonce": "1794073020025890343",
"signature": "0xd1325d60fc4b775b47b9e34b85cfea9d02f221d922a78010c7c899ee9319d986411816a558aeec2a74a17a502fd3e915e4ddaf0471a8f2bcdc9614591498bdf11b",
"signer": "0x186ba6187fbcabC9Bc0466925465c51F75d08c79",
"userId": "313825143"
}
}