diff --git a/native/native_rust_library/src/identity.rs b/native/native_rust_library/src/identity.rs
--- a/native/native_rust_library/src/identity.rs
+++ b/native/native_rust_library/src/identity.rs
@@ -145,6 +145,14 @@
   pub initial_device_list: String,
 }
 
+pub struct RestoreUserInfo {
+  pub user_id: String,
+  pub siwe_message: Option<String>,
+  pub siwe_signature: Option<String>,
+  pub device_keys: DeviceKeys,
+  pub device_list: String,
+}
+
 /// Counterpart of proto [`AuthResponse`] message
 /// that implements the `Serialize` trait.
 #[derive(Serialize)]
diff --git a/native/native_rust_library/src/identity/login.rs b/native/native_rust_library/src/identity/login.rs
--- a/native/native_rust_library/src/identity/login.rs
+++ b/native/native_rust_library/src/identity/login.rs
@@ -4,14 +4,14 @@
   protos::unauth::{
     DeviceKeyUpload, ExistingDeviceLoginRequest, IdentityKeyInfo,
     OpaqueLoginFinishRequest, OpaqueLoginStartRequest, Prekey,
-    SecondaryDeviceKeysUploadRequest, WalletAuthRequest,
+    RestoreUserRequest, SecondaryDeviceKeysUploadRequest, WalletAuthRequest,
   },
 };
 use tracing::instrument;
 
 use super::{
   IdentityAuthResult, LogInPasswordUserInfo, LogInWalletUserInfo,
-  PLATFORM_METADATA,
+  RestoreUserInfo, PLATFORM_METADATA,
 };
 use crate::utils::jsi_callbacks::handle_string_result_as_callback;
 use crate::{Error, DEVICE_TYPE, IDENTITY_SOCKET_ADDR, RUNTIME};
@@ -88,6 +88,47 @@
     });
   }
 
+  // Primary device restore
+  #[instrument]
+  pub fn restore_user(
+    user_id: String,
+    siwe_message: String,
+    siwe_signature: String,
+    key_payload: String,
+    key_payload_signature: String,
+    content_prekey: String,
+    content_prekey_signature: String,
+    notif_prekey: String,
+    notif_prekey_signature: String,
+    content_one_time_keys: Vec<String>,
+    notif_one_time_keys: Vec<String>,
+    device_list: String,
+    promise_id: u32,
+  ) {
+    RUNTIME.spawn(async move {
+      let siwe_message = Some(siwe_message).filter(|it| !it.is_empty());
+      let siwe_signature = Some(siwe_signature).filter(|it| !it.is_empty());
+      let restored_user_info = RestoreUserInfo {
+        user_id,
+        siwe_message,
+        siwe_signature,
+        device_list,
+        device_keys: DeviceKeys {
+          key_payload,
+          key_payload_signature,
+          content_prekey,
+          content_prekey_signature,
+          notif_prekey,
+          notif_prekey_signature,
+          content_one_time_keys,
+          notif_one_time_keys,
+        },
+      };
+      let result = restore_user_helper(restored_user_info).await;
+      handle_string_result_as_callback(result, promise_id);
+    });
+  }
+
   // QR code device log in
   pub fn upload_secondary_device_keys_and_log_in(
     user_id: String,
@@ -218,6 +259,30 @@
   Ok(serde_json::to_string(&auth_result)?)
 }
 
+async fn restore_user_helper(
+  wallet_user_info: RestoreUserInfo,
+) -> Result<String, Error> {
+  let restore_request = RestoreUserRequest {
+    user_id: wallet_user_info.user_id,
+    siwe_message: wallet_user_info.siwe_message,
+    siwe_signature: wallet_user_info.siwe_signature,
+    device_list: wallet_user_info.device_list,
+    device_key_upload: Some(wallet_user_info.device_keys.into()),
+  };
+
+  let mut identity_client =
+    get_unauthenticated_client(IDENTITY_SOCKET_ADDR, PLATFORM_METADATA.clone())
+      .await?;
+
+  let auth_response = identity_client
+    .restore_user(restore_request)
+    .await?
+    .into_inner();
+
+  let auth_result = IdentityAuthResult::from(auth_response);
+  Ok(serde_json::to_string(&auth_result)?)
+}
+
 async fn upload_secondary_device_keys_and_log_in_helper(
   user_id: String,
   nonce: String,
diff --git a/native/native_rust_library/src/lib.rs b/native/native_rust_library/src/lib.rs
--- a/native/native_rust_library/src/lib.rs
+++ b/native/native_rust_library/src/lib.rs
@@ -125,6 +125,23 @@
       promise_id: u32,
     );
 
+    #[cxx_name = "identityRestoreUser"]
+    fn restore_user(
+      user_id: String,
+      siwe_message: String,
+      siwe_signature: String,
+      key_payload: String,
+      key_payload_signature: String,
+      content_prekey: String,
+      content_prekey_signature: String,
+      notif_prekey: String,
+      notif_prekey_signature: String,
+      content_one_time_keys: Vec<String>,
+      notif_one_time_keys: Vec<String>,
+      device_list: String,
+      promise_id: u32,
+    );
+
     #[cxx_name = "identityUpdateUserPassword"]
     fn update_user_password(
       user_id: String,