diff --git a/pkg/storage/unified/resource/grpc/authenticator.go b/pkg/storage/unified/resource/grpc/authenticator.go
index c9956612dcc..91bad8c2dd6 100644
--- a/pkg/storage/unified/resource/grpc/authenticator.go
+++ b/pkg/storage/unified/resource/grpc/authenticator.go
@@ -2,6 +2,7 @@ package grpc
 
 import (
 	"context"
+	"log/slog"
 	"strconv"
 
 	"google.golang.org/grpc"
@@ -23,6 +24,8 @@ const (
 	mdOrgRole = "grafana-org-role"
 )
 
+var logger = slog.Default().With("logger", "legacy.grpc.Authenticator")
+
 // This is in a package we can no import
 // var _ interceptors.Authenticator = (*Authenticator)(nil)
 
@@ -142,6 +145,8 @@ func wrapContext(ctx context.Context) (context.Context, error) {
 func encodeIdentityInMetadata(user identity.Requester) metadata.MD {
 	id, _ := user.GetInternalID()
 
+	logger.Debug("encodeIdentityInMetadata", "user.id", user.GetID(), "user.Login", user.GetLogin(), "user.Name", user.GetName())
+
 	return metadata.Pairs(
 		// This should be everything needed to recreate the user
 		mdToken, user.GetIDToken(),