diff --git a/signer/core/apitypes/types.go b/signer/core/apitypes/types.go
index b0c5eb68be..1d57a4e777 100644
--- a/signer/core/apitypes/types.go
+++ b/signer/core/apitypes/types.go
@@ -506,6 +506,7 @@ func (typedData *TypedData) encodeArrayValue(encValue interface{}, encType strin
 				err         error
 			)
 			if reflect.TypeOf(item).Elem().Kind() == reflect.Uint8 {
+				// the item type is bytes.  encode the bytes array directly instead of recursing. 
 				encodedData, err = typedData.EncodePrimitiveValue(parsedType, item, depth+1)
 			} else {
 				encodedData, err = typedData.encodeArrayValue(item, parsedType, depth+1)