diff --git a/src/utils/index.ts b/src/utils/index.ts
index 42e8d44..de7cc4a 100644
--- a/src/utils/index.ts
+++ b/src/utils/index.ts
@@ -27,12 +27,12 @@ export function verifySignature(
   const signatureBuffer = Buffer.from(signature, 'utf8');
 
   if (
-    signatureBuffer.length !== digest.length ||
-    !crypto.timingSafeEqual(digest, signatureBuffer)
+    signatureBuffer.length !== digest.length
   ) {
     throw new Error('The signature is invalid.');
   }
-
-  console.log('The signature is valid');
+  if(!crypto.timingSafeEqual(digest, signatureBuffer){
+    throw new Error('invalid signature: content mismatch') 
+  }
   return true;
 }