diff --git a/clerk/tokens.go b/clerk/tokens.go
index 4ac2dba..4a85295 100644
--- a/clerk/tokens.go
+++ b/clerk/tokens.go
@@ -1,6 +1,7 @@
 package clerk
 
 import (
+	"encoding/json"
 	"fmt"
 	"time"
 
@@ -17,11 +18,12 @@ type TokenClaims struct {
 
 type SessionClaims struct {
 	jwt.Claims
-	SessionID              string `json:"sid"`
-	AuthorizedParty        string `json:"azp"`
-	ActiveOrganizationID   string `json:"org_id"`
-	ActiveOrganizationSlug string `json:"org_slug"`
-	ActiveOrganizationRole string `json:"org_role"`
+	SessionID              string          `json:"sid"`
+	AuthorizedParty        string          `json:"azp"`
+	ActiveOrganizationID   string          `json:"org_id"`
+	ActiveOrganizationSlug string          `json:"org_slug"`
+	ActiveOrganizationRole string          `json:"org_role"`
+	Actor                  json.RawMessage `json:"act,omitempty"`
 }
 
 // DecodeToken decodes a jwt token without verifying it.