{
"manageEntity": {
"action": "Save",
"entityId": "1285198181",
"entityType": "Track",
"nonce": "0xc79f9be89d869067304c6ec5e2144c55f14a2e60bf46003f3ef84f7e09d290f8",
"signature": "0xbecb98fd5efe0cd33beb7dc3412d4edd1b8ce3ec09611de16b403ba75649d3cb026126f5c10f68f36a865699368c0466a5cfb38fed07bb15a191588b114d88ec1b",
"signer": "0x568426a5D555ADe94657d547B2Df4a4dc1f0C014",
"userId": "71569007"
}
}