OffshelfRequest

{
    "goodsNumList": [
        {
            "GoodsNum": "string",
            "AssetId": "string",
            "SteamGameId": "string"
        }
    ],
    "PartnerId": "string",
    "Timestamp": "string",
    "Sign": "string",
    "ServiceProviderId": "string",
    "OpenID": "string"
}