packet

src/main/java/emu/grasscutter/server/packet/send/PacketCardProductRewardNotify.java

+package emu.grasscutter.server.packet.send;
+
+
+import emu.grasscutter.net.packet.GenshinPacket;
+import emu.grasscutter.net.packet.PacketOpcodes;
+import emu.grasscutter.net.proto.CardProductRewardNotifyOuterClass.CardProductRewardNotify;
+
+public class PacketCardProductRewardNotify extends GenshinPacket {
+
+    public PacketCardProductRewardNotify(int remainsDay) {
+        super(PacketOpcodes.CardProductRewardNotify);
+
+        CardProductRewardNotify proto = CardProductRewardNotify.newBuilder()
+                .setProductId("ys_chn_blessofmoon_tier5")
+                .setHcoin(90)
+                .setRemainDays(remainsDay)
+                .build();
+
+        // Hard code Product id keep cool 😎
+
+        this.setData(proto);
+    }
+
+}