diff --git a/Cargo.lock b/Cargo.lock
index 03a6b5b..8be6ce7 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -234,7 +234,10 @@ checksum = "7e36cc9d416881d2e24f9a963be5fb1cd90966419ac844274161d10488b3e825"
 dependencies = [
  "android-tzdata",
  "iana-time-zone",
+ "js-sys",
  "num-traits",
+ "serde",
+ "wasm-bindgen",
  "windows-targets 0.52.6",
 ]
 
@@ -1600,6 +1603,7 @@ version = "0.1.0"
 dependencies = [
  "argon2",
  "atom_syndication",
+ "chrono",
  "rocket",
  "rocket_dyn_templates",
  "rss",
diff --git a/Cargo.toml b/Cargo.toml
index ce29cee..33581b3 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -6,6 +6,7 @@ edition = "2021"
 [dependencies]
 argon2 = "0.5.3"
 atom_syndication = "0.12.6"
+chrono = { version = "0.4.34", features = ["serde"] }
 rocket = { version = "0.5.1", features = ["json"] }
 rocket_dyn_templates = { version = "0.2.0", features = ["tera"] }
 rss = "2.0.11"
diff --git a/src/main.rs b/src/main.rs
index 610d31b..c159c25 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -3,6 +3,7 @@
 use rocket::serde::{Serialize, json::Json};
 use rocket_dyn_templates::{Template, context};
 use rocket::fs::FileServer;
+use uuid::Uuid;
 
 #[derive(Serialize)]
 #[serde(crate = "rocket::serde")]
@@ -11,6 +12,28 @@ struct Message {
     b: String,
 }
 
+#[derive(Debug, Serialize)]
+#[serde(crate = "rocket::serde")]
+struct User {
+    id: Uuid,
+    username: String,
+    email: Option<String>,
+    display_name: Option<String>,
+    created_at: String,  // ISO 8601 formatted date string
+}
+
+impl User {
+    fn new(username: String, email: Option<String>, display_name: Option<String>) -> Self {
+        User {
+            id: Uuid::new_v4(),
+            username,
+            email,
+            display_name,
+            created_at: chrono::Utc::now().to_rfc3339(),
+        }
+    }
+}
+
 #[get("/message")]
 fn message() -> Json<Message> {
     Json(Message {