diff --git a/lib/types/identity-service-types.js b/lib/types/identity-service-types.js
--- a/lib/types/identity-service-types.js
+++ b/lib/types/identity-service-types.js
@@ -168,6 +168,13 @@
     siweMessage: string,
     siweSignature: string,
   ) => Promise<IdentityAuthResult>;
+  // Users cannot restore backup from web
+  +restoreUser?: (
+    userID: string,
+    deviceList: SignedDeviceList,
+    siweMessage?: string,
+    siweSignature?: string,
+  ) => Promise<IdentityAuthResult>;
   // on native, publishing prekeys to Identity is called directly from C++,
   // there is no need to expose it to JS
   +publishWebPrekeys?: (prekeys: SignedPrekeys) => Promise<void>;
diff --git a/native/identity-service/identity-service-context-provider.react.js b/native/identity-service/identity-service-context-provider.react.js
--- a/native/identity-service/identity-service-context-provider.react.js
+++ b/native/identity-service/identity-service-context-provider.react.js
@@ -507,6 +507,42 @@
           primaryIdentityPublicKeys.ed25519,
         );
       },
+      restoreUser: async (
+        userID: string,
+        deviceList: SignedDeviceList,
+        siweMessage?: string,
+        siweSignature?: string,
+      ) => {
+        await commCoreModule.initializeCryptoAccount();
+        const [
+          { blobPayload, signature, primaryIdentityPublicKeys },
+          { contentOneTimeKeys, notificationsOneTimeKeys },
+          prekeys,
+        ] = await Promise.all([
+          commCoreModule.getUserPublicKey(),
+          commCoreModule.getOneTimeKeys(ONE_TIME_KEYS_NUMBER),
+          commCoreModule.validateAndGetPrekeys(),
+        ]);
+        const restoreResult = await commRustModule.restoreUser(
+          userID,
+          siweMessage,
+          siweSignature,
+          blobPayload,
+          signature,
+          prekeys.contentPrekey,
+          prekeys.contentPrekeySignature,
+          prekeys.notifPrekey,
+          prekeys.notifPrekeySignature,
+          getOneTimeKeyValues(contentOneTimeKeys),
+          getOneTimeKeyValues(notificationsOneTimeKeys),
+          JSON.stringify(deviceList),
+        );
+
+        return await processAuthResult(
+          restoreResult,
+          primaryIdentityPublicKeys.ed25519,
+        );
+      },
       uploadKeysForRegisteredDeviceAndLogIn: async (
         userID: string,
         nonceChallengeResponse: SignedNonce,