diff --git a/models/resources/native_tools/workflow_event.go b/models/resources/native_tools/workflow_event.go
index aafbb84..206997d 100644
--- a/models/resources/native_tools/workflow_event.go
+++ b/models/resources/native_tools/workflow_event.go
@@ -12,7 +12,8 @@ import (
 type WorkflowEventParams struct {
 	WorkflowResourceID string               `json:"workflow_execution_id" bson:"workflow_execution_id" validate:"required"`
 	ManualCheck        bool                 `json:"manual_check" bson:"manual_check"`
-	OutputPayload      interface{}          `json:"output_payload" bson:"output_payload"`
+	Input              string               `json:"input" bson:"input"`
+	Payload            string               `json:"payload" bson:"payload"`
 	BookingMode        *booking.BookingMode `json:"booking_mode" bson:"booking_mode"`
 }