diff --git a/types/types.go b/types/types.go
index 126e549..4920a1a 100644
--- a/types/types.go
+++ b/types/types.go
@@ -1,6 +1,7 @@
 package types
 
 import (
+	"encoding/json"
 	"fmt"
 	"net/http"
 )
@@ -27,6 +28,6 @@ func (le LemmyError) Error() string {
 }
 
 type LemmyWebSocketMsg struct {
-	Op   UserOperation `json:"op"`
-	Data any           `json:"data"`
+	Op   UserOperation   `json:"op"`
+	Data json.RawMessage `json:"data"`
 }
diff --git a/types/websocket.go b/types/websocket.go
new file mode 100644
index 0000000..8536f9b
--- /dev/null
+++ b/types/websocket.go
@@ -0,0 +1,37 @@
+package types
+
+type UserJoin struct {
+	Auth string `json:"auth"`
+}
+
+type UserJoinResponse struct {
+	Joined bool `json:"joined"`
+	LemmyResponse
+}
+
+type CommunityJoin struct {
+	CommunityID int `json:"community_id"`
+}
+
+type CommunityJoinResponse struct {
+	Joined bool `json:"joined"`
+	LemmyResponse
+}
+
+type ModJoin struct {
+	CommunityID int `json:"community_id"`
+}
+
+type ModJoinResponse struct {
+	Joined bool `json:"joined"`
+	LemmyResponse
+}
+
+type PostJoin struct {
+	PostID int `json:"post_id"`
+}
+
+type PostJoinResponse struct {
+	Joined bool `json:"joined"`
+	LemmyResponse
+}