let model = BURewardedVideoModel()
        model.userId = "5e7c1a2881a2a820c82fefb6"
        rewardedAd = BUNativeExpressRewardedVideoAd(slotID: "945109811", rewardedVideoModel: model)
        rewardedAd.delegate = self
        rewardedAd.loadData()

    func nativeExpressRewardedVideoAdViewRenderSuccess(_ rewardedVideoAd: BUNativeExpressRewardedVideoAd) {
        let isShow = rewardedAd.show(fromRootViewController: SSTabBarController.shard)
    }