{
"manageEntity": {
"action": "Save",
"entityId": "1536351482",
"entityType": "Track",
"nonce": "0x0880714e3096e7d4f1bd04f7b6aff0940244833d1719de139b039e2348e1a860",
"signature": "0xa1dff4ef15981a89e5a0b21733894880ba9080cb333fc71b57b75856d867a8c42ba8238e6c08ba04a2eb1b85a0798e66efa93e8849f9cc490ce1d77916aba9181c",
"signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
"userId": "486490947"
}
}