--- a/net/minecraft/network/chat/MessageSignature.java
+++ b/net/minecraft/network/chat/MessageSignature.java
@@ -13,6 +_,7 @@
 import net.minecraft.util.SignatureValidator;
 
 public record MessageSignature(byte[] bytes) {
+    public net.kyori.adventure.chat.SignedMessage.Signature adventure() { return () -> this.bytes; } // Paper - adventure; support signed messages
     public static final Codec<MessageSignature> CODEC = ExtraCodecs.BASE64_STRING.xmap(MessageSignature::new, MessageSignature::bytes);
     public static final int BYTES = 256;
 
