diff --git a/aiogram/types/message_entity.py b/aiogram/types/message_entity.py
index 3f68a6c9..f5b372a5 100644
--- a/aiogram/types/message_entity.py
+++ b/aiogram/types/message_entity.py
@@ -48,10 +48,12 @@ class MessageEntity(base.TelegramObject):
         :return: part of text
         """
         if sys.maxunicode == 0xFFFF:
-            return text[self.offset : self.offset + self.length]
+            return text[self.offset: self.offset + self.length]
 
-        entity_text = text.encode("utf-16-le") if not isinstance(text, bytes) else text
-        entity_text = entity_text[self.offset * 2 : (self.offset + self.length) * 2]
+        entity_text = text.encode(
+            "utf-16-le") if not isinstance(text, bytes) else text
+        entity_text = entity_text[self.offset *
+                                  2: (self.offset + self.length) * 2]
         return entity_text.decode("utf-16-le")
 
     @deprecated(
@@ -130,4 +132,4 @@ class MessageEntityType(helper.Helper):
     UNDERLINE = helper.Item()  # underline
     STRIKETHROUGH = helper.Item()  # strikethrough
     TEXT_LINK = helper.Item()  # text_link -  for clickable text URLs
-    TEXT_MENTION = helper.Item()  # text_mention -  for users without usernames
\ No newline at end of file
+    TEXT_MENTION = helper.Item()  # text_mention -  for users without usernames