{
"manageEntity": {
"action": "Save",
"entityId": "141108",
"entityType": "Track",
"nonce": "0x0ddecc6abd7c4183559457749afaad1d87e58c3fd3df3a94399eddc28c8f35d2",
"signature": "0x6fe0c518e318453bf064a5728a25430c0aa76150224605d20b09687ae842fde92fc70600ee5382926e4c0f841c35fefcbf5ae6228fdee653a39de919a538de361c",
"signer": "0xdB791822A11f5aDc830669bdADa8121a4558D7A3",
"userId": "347139808"
}
}