diff --git a/services/backup/src/service/handlers/add_attachments.rs b/services/backup/src/service/handlers/add_attachments.rs
new file mode 100644
--- /dev/null
+++ b/services/backup/src/service/handlers/add_attachments.rs
@@ -0,0 +1,11 @@
+use tonic::Status;
+
+use super::proto;
+use crate::database::DatabaseClient;
+
+pub async fn handle_add_attachments(
+  db: &DatabaseClient,
+  request: proto::AddAttachmentsRequest,
+) -> Result<(), Status> {
+  unimplemented!()
+}
diff --git a/services/backup/src/service/mod.rs b/services/backup/src/service/mod.rs
--- a/services/backup/src/service/mod.rs
+++ b/services/backup/src/service/mod.rs
@@ -18,6 +18,7 @@
 
 /// submodule containing gRPC endpoint handler implementations
 mod handlers {
+  pub(super) mod add_attachments;
   pub(super) mod create_backup;
 
   // re-exports for convenient usage in handlers
@@ -142,12 +143,27 @@
     Err(Status::unimplemented("unimplemented"))
   }
 
-  #[instrument(skip(self))]
+  #[instrument(skip_all,
+    fields(
+      user_id = &request.get_ref().user_id,
+      backup_id = &request.get_ref().backup_id,
+      log_id = &request.get_ref().log_id,
+      holders = &request.get_ref().holders)
+    )]
   async fn add_attachments(
     &self,
-    _request: Request<proto::AddAttachmentsRequest>,
+    request: Request<proto::AddAttachmentsRequest>,
   ) -> Result<Response<()>, Status> {
-    Err(Status::unimplemented("unimplemented"))
+    info!("AddAttachment request: {:?}", request);
+
+    handlers::add_attachments::handle_add_attachments(
+      &self.db,
+      request.into_inner(),
+    )
+    .await?;
+
+    info!("Request processed successfully");
+    Ok(Response::new(()))
   }
 }