diff --git a/README.md b/README.md
index 8aad3da43..7b5ac5f0a 100644
--- a/README.md
+++ b/README.md
@@ -320,22 +320,38 @@ app = Flask(__name__)
 def do_interactive_card(data: lark.Card) -> Any:
     print(lark.JSON.marshal(data))
     content = {
-        "header": {
-            "title": {
-                "tag": "plain_text",
-                "content": "更新卡片成功"
-            },
-            "template": "green"
+        "toast":{
+            "type":"info",
+            "content":"卡片交互成功",
+            "i18n":{
+                "zh_cn":"卡片交互成功",
+                "en_us":"card action success"
+            }
         },
-        "elements": [
-            {
-                "tag": "div",
-                "text": {
-                    "tag": "lark_md",
-                    "content": "**Success!\n成功啦😄**"
+        "card":{
+            "type":"raw",
+            "data":{
+                "config":{
+                    "enable_forward":True
+                },
+                "elements":[
+                    {
+                        "tag":"div",
+                        "text":{
+                            "content":"This is the plain text",
+                            "tag":"plain_text"
+                        }
+                    }
+                ],
+                "header":{
+                    "template":"blue",
+                    "title":{
+                        "content":"This is the title",
+                        "tag":"plain_text"
+                    }
                 }
-            },
-        ]
+            }
+        }
     }
     return content
 
diff --git a/lark_oapi/card/action_handler.py b/lark_oapi/card/action_handler.py
index 460f87587..930f02443 100644
--- a/lark_oapi/card/action_handler.py
+++ b/lark_oapi/card/action_handler.py
@@ -100,8 +100,8 @@ def _verify_sign(self, request: RawRequest) -> None:
         timestamp = request.headers.get(LARK_REQUEST_TIMESTAMP)
         nonce = request.headers.get(LARK_REQUEST_NONCE)
         signature = request.headers.get(LARK_REQUEST_SIGNATURE)
-        bs = (timestamp + nonce + self._verification_token).encode(UTF_8) + request.body
-        h = hashlib.sha1(bs)
+        bs = (timestamp + nonce + self._encrypt_key).encode(UTF_8) + request.body
+        h = hashlib.sha256(bs)
         if signature != h.hexdigest():
             raise AccessDeniedException("signature verification failed")
 
diff --git a/lark_oapi/card/model.py b/lark_oapi/card/model.py
index b937a000f..0e7ed2531 100644
--- a/lark_oapi/card/model.py
+++ b/lark_oapi/card/model.py
@@ -4,31 +4,82 @@
 from lark_oapi.core.model import RawRequest
 
 
-class Action(object):
+class EventOperator(object):
+    _types = {}
+
+    def __init__(self, d=None) -> None:
+        self.tenant_key: Optional[str] = None
+        self.user_id: Optional[str] = None
+        self.open_id: Optional[str] = None
+        init(self, d, self._types)
+
+
+class EventAction(object):
     _types = {}
 
     def __init__(self, d=None) -> None:
         self.value: Dict[str, Any] = {}
-        self.tag: Optional[str] = None
-        self.option: Optional[str] = None
+        self.form_value: Dict[str, Any] = {}
         self.timezone: Optional[str] = None
+        self.name: Optional[str] = None
+        self.tag: Optional[str] = None
+        self.option: Dict[str, Any] = {}
+        init(self, d, self._types)
+
+
+class EventContext(object):
+    _types = {}
+
+    def __init__(self, d=None) -> None:
+        self.url: Optional[str] = None
+        self.preview_token: Optional[str] = None
+        self.open_message_id: Optional[str] = None
+        self.open_chat_id: Optional[str] = None
+        init(self, d, self._types)
+
+
+class Header(object):
+    _types = {}
+
+    def __init__(self, d=None) -> None:
+        self.event_id: Optional[str] = None
+        self.token: Optional[str] = None
+        self.create_time: Optional[str] = None
+        self.event_type: Optional[str] = None
+        self.tenant_key: Optional[str] = None
+        self.app_id: Optional[str] = None
+        init(self, d, self._types)
+        
+
+class Event(object):
+    _types = {
+        "operator": EventOperator,
+        "action": EventAction,
+        "context": EventContext
+    }
+
+    def __init__(self, d=None) -> None:
+        self.operator: Optional[EventOperator] = None
+        self.token: Optional[str] = None
+        self.action: Optional[EventAction] = None
+        self.host: Optional[str] = None
+        self.delivery_type: Optional[str] = None
+        self.context: Optional[EventContext] = None
         init(self, d, self._types)
 
 
 class Card(object):
     _types = {
-        "action": Action
+        "header": Header,
+        "event": Event
     }
 
     def __init__(self, d=None) -> None:
-        self.open_id: Optional[str] = None
-        self.user_id: Optional[str] = None
-        self.tenant_key: Optional[str] = None
-        self.open_message_id: Optional[str] = None
-        self.open_chat_id: Optional[str] = None
+        self.schema: Optional[str] = None
+        self.header: Optional[Header] = None
+        self.event: Optional[Event] = None
         self.token: Optional[str] = None
         self.challenge: Optional[str] = None
         self.type: Optional[str] = None
-        self.action: Optional[Action] = None
         self.raw: Optional[RawRequest] = None
         init(self, d, self._types)
diff --git a/samples/card/flask_sample.py b/samples/card/flask_sample.py
index 2266486d8..6a56d5a31 100644
--- a/samples/card/flask_sample.py
+++ b/samples/card/flask_sample.py
@@ -11,22 +11,38 @@
 def do_interactive_card(data: lark.Card) -> Any:
     print(lark.JSON.marshal(data))
     content = {
-        "header": {
-            "title": {
-                "tag": "plain_text",
-                "content": "更新卡片成功"
-            },
-            "template": "green"
+        "toast":{
+            "type":"info",
+            "content":"卡片交互成功",
+            "i18n":{
+                "zh_cn":"卡片交互成功",
+                "en_us":"card action success"
+            }
         },
-        "elements": [
-            {
-                "tag": "div",
-                "text": {
-                    "tag": "lark_md",
-                    "content": "**Success!\n成功啦😄**"
+        "card":{
+            "type":"raw",
+            "data":{
+                "config":{
+                    "enable_forward":True
+                },
+                "elements":[
+                    {
+                        "tag":"div",
+                        "text":{
+                            "content":"This is the plain text",
+                            "tag":"plain_text"
+                        }
+                    }
+                ],
+                "header":{
+                    "template":"blue",
+                    "title":{
+                        "content":"This is the title",
+                        "tag":"plain_text"
+                    }
                 }
-            },
-        ]
+            }
+        }
     }
     return content