diff --git a/native/account/fullscreen-siwe-panel.react.js b/native/account/fullscreen-siwe-panel.react.js
--- a/native/account/fullscreen-siwe-panel.react.js
+++ b/native/account/fullscreen-siwe-panel.react.js
@@ -46,7 +46,7 @@
   const onSuccess = React.useCallback(
     async (result: SIWEResult) => {
       successRef.current = true;
-      await siweServerCall(result);
+      await siweServerCall({ ...result, doNotRegister: true });
       dispatch({
         type: setDataLoadedActionType,
         payload: {
diff --git a/native/account/registration/existing-ethereum-account.react.js b/native/account/registration/existing-ethereum-account.react.js
--- a/native/account/registration/existing-ethereum-account.react.js
+++ b/native/account/registration/existing-ethereum-account.react.js
@@ -44,7 +44,7 @@
   const { params } = props.route;
   const dispatch = useDispatch();
   const onProceedToLogIn = React.useCallback(async () => {
-    await siweServerCall(params);
+    await siweServerCall({ ...params, doNotRegister: true });
     dispatch({
       type: setDataLoadedActionType,
       payload: {
diff --git a/native/account/siwe-hooks.js b/native/account/siwe-hooks.js
--- a/native/account/siwe-hooks.js
+++ b/native/account/siwe-hooks.js
@@ -22,6 +22,7 @@
 type SIWEServerCallParams = {
   +message: string,
   +signature: string,
+  +doNotRegister?: boolean,
   ...
 };
 type UseSIWEServerCallParams = {
@@ -38,7 +39,7 @@
     async (
       message: string,
       signature: string,
-      extraInfo: LogInExtraInfo,
+      extraInfo: $ReadOnly<{ ...LogInExtraInfo, +doNotRegister?: boolean }>,
       callServerEndpointOptions: ?CallServerEndpointOptions,
     ) => {
       try {
@@ -71,7 +72,10 @@
 
   const dispatchActionPromise = useDispatchActionPromise();
   return React.useCallback(
-    async ({ message, signature }, callServerEndpointOptions) => {
+    async (
+      { message, signature, doNotRegister },
+      callServerEndpointOptions,
+    ) => {
       const extraInfo = await logInExtraInfo();
       const initialNotificationsEncryptedMessage =
         await getInitialNotificationsEncryptedMessage({
@@ -84,6 +88,7 @@
         {
           ...extraInfo,
           initialNotificationsEncryptedMessage,
+          doNotRegister,
         },
         callServerEndpointOptions,
       );