this request should have had the full username, and not just name...

api/domain/requests.go

@@ -5,6 +5,6 @@ type HelloBodyRequest struct {
 }
 
 type UpdateScopesRequest struct {
-	Username string   `json:"name"`
+	Username string   `json:"username"`
 	Scopes   []string `json:"scopes" validate:"required"`
 }