diff --git a/packages/backend/native-utils/crates/model/src/error.rs b/packages/backend/native-utils/crates/model/src/error.rs
index 7686312ec4..c90f3f5a32 100644
--- a/packages/backend/native-utils/crates/model/src/error.rs
+++ b/packages/backend/native-utils/crates/model/src/error.rs
@@ -5,5 +5,7 @@ pub enum Error {
     #[error("Failed to get database connection")]
     DbConnError(#[from] database::error::Error),
     #[error("Database operation error: {0}")]
-    DatabaseOperationError(#[from] sea_orm::DbErr),
+    DbOperationError(#[from] sea_orm::DbErr),
+    #[error("Requested entity not found")]
+    NotFound,
 }
diff --git a/packages/backend/native-utils/crates/model/src/repository/antenna.rs b/packages/backend/native-utils/crates/model/src/repository/antenna.rs
index f9ef012a6e..d3ad6ececb 100644
--- a/packages/backend/native-utils/crates/model/src/repository/antenna.rs
+++ b/packages/backend/native-utils/crates/model/src/repository/antenna.rs
@@ -5,6 +5,7 @@ use crate::entity::{antenna, antenna_note, user_group_joining};
 use crate::error::Error;
 use crate::schema::antenna::Antenna;
 
+use super::macros::impl_pack_by_id;
 use super::Repository;
 
 #[async_trait]
@@ -44,4 +45,8 @@ impl Repository<Antenna> for antenna::Model {
             has_unread_note,
         })
     }
+
+    async fn pack_by_id(id: String) -> Result<Antenna, Error> {
+        impl_pack_by_id!(antenna::Entity, id)
+    }
 }
diff --git a/packages/backend/native-utils/crates/model/src/repository/mod.rs b/packages/backend/native-utils/crates/model/src/repository/mod.rs
index 01e11412db..83573ab160 100644
--- a/packages/backend/native-utils/crates/model/src/repository/mod.rs
+++ b/packages/backend/native-utils/crates/model/src/repository/mod.rs
@@ -8,4 +8,18 @@ use crate::error::Error;
 #[async_trait]
 pub trait Repository<T: JsonSchema> {
     async fn pack(self) -> Result<T, Error>;
+    async fn pack_by_id(id: String) -> Result<T, Error>;
+}
+
+mod macros {
+    macro_rules! impl_pack_by_id {
+        ($a:ty, $b:ident) => {
+            match <$a>::find_by_id($b).one(database::get_database()?).await? {
+                None => Err(Error::NotFound),
+                Some(m) => m.pack().await,
+            }
+        };
+    }
+
+    pub(crate) use impl_pack_by_id;
 }
diff --git a/packages/backend/native-utils/crates/model/src/schema/mod.rs b/packages/backend/native-utils/crates/model/src/schema/mod.rs
index cc495aac1b..a647510200 100644
--- a/packages/backend/native-utils/crates/model/src/schema/mod.rs
+++ b/packages/backend/native-utils/crates/model/src/schema/mod.rs
@@ -6,7 +6,7 @@ use schemars::{schema_for, JsonSchema};
 
 /// Structs of schema defitions implement this trait in order to
 /// provide the JSON Schema validator [`jsonschema::JSONSchema`].
-trait Schema<T: JsonSchema> {
+pub trait Schema<T: JsonSchema> {
     /// Returns the validator of [JSON Schema Draft
     /// 7](https://json-schema.org/specification-links.html#draft-7) with the
     /// default settings of [`schemars::gen::SchemaSettings`].
diff --git a/packages/backend/native-utils/crates/model/tests/repository/antenna.rs b/packages/backend/native-utils/crates/model/tests/repository/antenna.rs
index e07a16c072..193efcba2b 100644
--- a/packages/backend/native-utils/crates/model/tests/repository/antenna.rs
+++ b/packages/backend/native-utils/crates/model/tests/repository/antenna.rs
@@ -29,34 +29,38 @@ mod int_test {
             .await
             .expect("Unable to pack");
 
-        assert_eq!(
-            packed,
-            schema::antenna::Antenna {
-                id: alice_antenna.id,
-                created_at: alice_antenna.created_at.into(),
-                name: "Test Antenna".to_string(),
-                keywords: vec![
-                    vec!["foo".to_string(), "bar".to_string()],
-                    vec!["foobar".to_string()]
-                ]
-                .into(),
-                exclude_keywords: vec![
-                    vec!["abc".to_string()],
-                    vec!["def".to_string(), "ghi".to_string()]
-                ]
-                .into(),
-                src: schema::antenna::AntennaSrc::All,
-                user_list_id: None,
-                user_group_id: None,
-                users: vec![].into(),
-                instances: vec![].into(),
-                case_sensitive: true,
-                notify: true,
-                with_replies: false,
-                with_file: false,
-                has_unread_note: false,
-            }
-        );
+        let packed_by_id = antenna::Model::pack_by_id(alice_antenna.id.to_owned())
+            .await
+            .expect("Unable to pack");
+
+        let result = schema::antenna::Antenna {
+            id: alice_antenna.id,
+            created_at: alice_antenna.created_at.into(),
+            name: "Test Antenna".to_string(),
+            keywords: vec![
+                vec!["foo".to_string(), "bar".to_string()],
+                vec!["foobar".to_string()],
+            ]
+            .into(),
+            exclude_keywords: vec![
+                vec!["abc".to_string()],
+                vec!["def".to_string(), "ghi".to_string()],
+            ]
+            .into(),
+            src: schema::antenna::AntennaSrc::All,
+            user_list_id: None,
+            user_group_id: None,
+            users: vec![].into(),
+            instances: vec![].into(),
+            case_sensitive: true,
+            notify: true,
+            with_replies: false,
+            with_file: false,
+            has_unread_note: false,
+        };
+
+        assert_eq!(packed, result);
+        assert_eq!(packed_by_id, result);
 
         cleanup().await;
     }