{
"manageEntity": {
"action": "Save",
"entityId": "1488511246",
"entityType": "Track",
"nonce": "0x12b8bad7fe9cf1960937d38ae79185044a4d88c69eb1b077b44a76d2ac81a3e4",
"signature": "0xa260913920e94289409708dfbf113299e6d88780903a02daab056f54578886640ccad2b28d82561db046da2068e944767a1ffc151da8709689e225343b162b1f1b",
"signer": "0x46e7101c875D60D850099f5251d848716a5CfB80",
"userId": "87961106"
}
}