{
"manageEntity": {
"action": "Save",
"entityId": "7625620",
"entityType": "Track",
"nonce": "0x5b4fc629e0d13e6774cee01a9756b64721e35120b2add71206091f6476d50420",
"signature": "0xa46408d4893cee77a164c6c5b4ee37b6270fbaad4514702419af7bafc76c367022ac337363d0d9f778b736b8b853ee500e32dfe39aacf8cf4d2fe93c6fa7fea01c",
"signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
"userId": "854614078"
}
}