diff --git a/README.md b/README.md
index 7e82dfb..a224b76 100644
--- a/README.md
+++ b/README.md
@@ -135,8 +135,8 @@ For AuthZ, the app exposes the following [gRPC](https://grpc.io/) services :
     ```json
     {
         "uuid": "96d99d44-e0a6-458e-a656-de2a400d60a9",
-        "domain": "user",
-        "action": "read",
+        "domain": "USER",
+        "action": "READ",
         "context": [
             {
                 "name": "owner",