diff --git a/backend/routes/auth.js b/backend/routes/auth.js
index b8f77ff..3fd3878 100644
--- a/backend/routes/auth.js
+++ b/backend/routes/auth.js
@@ -221,35 +221,9 @@ router.post('/oauth', strictAuthLimiter, async (req, res) => {
   }
 });
 
-// Проверка авторизации и получение данных пользователя
-const { authenticate } = require('../middleware/auth');
-
 router.post('/verify', authenticate, async (req, res) => {
   try {
-    const user = await req.user.populate([
-      { path: 'followers', select: 'username firstName lastName photoUrl' },
-      { path: 'following', select: 'username firstName lastName photoUrl' }
-    ]);
-    
-    const settings = normalizeUserSettings(user.settings);
-
-    res.json({
-      success: true,
-      user: {
-        id: user._id,
-        telegramId: user.telegramId,
-        username: user.username,
-        firstName: user.firstName,
-        lastName: user.lastName,
-        photoUrl: user.photoUrl,
-        bio: user.bio,
-        role: user.role,
-        followersCount: user.followers.length,
-        followingCount: user.following.length,
-        settings,
-        banned: user.banned
-      }
-    });
+    return respondWithUser(req.user, res);
   } catch (error) {
     console.error('Ошибка verify:', error);
     res.status(500).json({ error: 'Ошибка сервера' });
diff --git a/backend/utils/telegram.js b/backend/utils/telegram.js
index 79b559d..2f3da9d 100644
--- a/backend/utils/telegram.js
+++ b/backend/utils/telegram.js
@@ -1,9 +1,55 @@
-const { parse, isValid } = require('@telegram-apps/init-data-node');
+const { parse, validate } = require('@telegram-apps/init-data-node');
+const crypto = require('crypto');
 const config = require('../config');
 
 const MAX_AUTH_AGE_SECONDS = 5 * 60;
 
+/**
+ * Manual validation with base64 padding fix
+ * Based on: https://docs.telegram-mini-apps.com/platform/init-data
+ */
+function manualValidateInitData(initDataRaw, botToken) {
+  const params = new URLSearchParams(initDataRaw);
+  const hash = params.get('hash');
+  
+  if (!hash) {
+    throw new Error('Отсутствует hash в initData');
+  }
+
+  // Remove hash from params
+  params.delete('hash');
+
+  // Create data check string
+  const dataCheckArr = Array.from(params.entries())
+    .sort(([a], [b]) => a.localeCompare(b))
+    .map(([key, value]) => `${key}=${value}`);
+
+  const dataCheckString = dataCheckArr.join('\n');
+
+  // Create secret key
+  const secretKey = crypto
+    .createHmac('sha256', 'WebAppData')
+    .update(botToken)
+    .digest();
+
+  // Create signature
+  const signature = crypto
+    .createHmac('sha256', secretKey)
+    .update(dataCheckString)
+    .digest('hex');
+
+  // Compare signatures
+  return signature === hash;
+}
+
 function validateAndParseInitData(initDataRaw) {
+  console.log('[Telegram] validateAndParseInitData called:', {
+    hasInitData: !!initDataRaw,
+    type: typeof initDataRaw,
+    length: initDataRaw?.length || 0,
+    preview: initDataRaw?.substring(0, 100) + '...'
+  });
+
   if (!config.telegramBotToken) {
     throw new Error('TELEGRAM_BOT_TOKEN не настроен');
   }
@@ -18,14 +64,43 @@ function validateAndParseInitData(initDataRaw) {
     throw new Error('initData пуст');
   }
 
-  const valid = isValid(trimmed, config.telegramBotToken);
+  console.log('[Telegram] Validating initData with bot token...');
+
+  // Try library validation first
+  let valid = false;
+  try {
+    validate(trimmed, config.telegramBotToken);
+    valid = true;
+    console.log('[Telegram] Library validation successful');
+  } catch (libError) {
+    console.log('[Telegram] Library validation failed, trying manual validation:', libError.message);
+    
+    // Fallback to manual validation with base64 padding fix
+    try {
+      valid = manualValidateInitData(trimmed, config.telegramBotToken);
+      if (valid) {
+        console.log('[Telegram] Manual validation successful');
+      }
+    } catch (manualError) {
+      console.error('[Telegram] Manual validation also failed:', manualError.message);
+    }
+  }
 
   if (!valid) {
+    console.error('[Telegram] All validation attempts failed');
     throw new Error('Неверная подпись initData');
   }
 
+  console.log('[Telegram] initData validation successful, parsing...');
+
   const payload = parse(trimmed);
 
+  console.log('[Telegram] Parsed payload:', {
+    hasUser: !!payload?.user,
+    userId: payload?.user?.id,
+    authDate: payload?.auth_date
+  });
+
   if (!payload || !payload.user) {
     throw new Error('Отсутствует пользователь в initData');
   }
@@ -42,6 +117,8 @@ function validateAndParseInitData(initDataRaw) {
     throw new Error('Данные авторизации устарели');
   }
 
+  console.log('[Telegram] initData validation complete');
+
   return payload;
 }
 
diff --git a/frontend/src/utils/api.js b/frontend/src/utils/api.js
index 0afd2d1..c0b908a 100644
--- a/frontend/src/utils/api.js
+++ b/frontend/src/utils/api.js
@@ -18,6 +18,15 @@ const api = axios.create({
 
 api.interceptors.request.use((config) => {
   const initData = window.Telegram?.WebApp?.initData;
+  
+  console.log('[API] Request interceptor:', {
+    url: config.url,
+    method: config.method,
+    hasInitData: !!initData,
+    initDataLength: initData?.length || 0,
+    initDataPreview: initData?.substring(0, 50) + '...'
+  });
+  
   if (initData) {
     config.headers = config.headers || {};
     if (!config.headers.Authorization) {
@@ -26,7 +35,10 @@ api.interceptors.request.use((config) => {
     if (!config.headers['x-telegram-init-data']) {
       config.headers['x-telegram-init-data'] = initData;
     }
+  } else {
+    console.warn('[API] No initData available for request:', config.url);
   }
+  
   return config;
 });
 
diff --git a/package.json b/package.json
index bc325ec..6fd336c 100644
--- a/package.json
+++ b/package.json
@@ -36,7 +36,7 @@
     "xss-clean": "^0.1.4",
     "hpp": "^0.2.3",
     "validator": "^13.11.0",
-    "@telegram-apps/init-data-node": "^1.0.0"
+    "@telegram-apps/init-data-node": "^1.0.4"
   },
   "devDependencies": {
     "nodemon": "^3.0.1",