diff --git a/src/main/java/com/example/demo/domain/DTO/FirstdataRequestDTO.java b/src/main/java/com/example/demo/domain/DTO/FirstdataRequestDTO.java
new file mode 100644
index 0000000..e3b6052
--- /dev/null
+++ b/src/main/java/com/example/demo/domain/DTO/FirstdataRequestDTO.java
@@ -0,0 +1,24 @@
+package com.example.demo.domain.DTO;
+
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+/**
+ * @program: gold-java
+ * @ClassName FirstdataRequestDTO
+ * @description:
+ * @author: Double
+ * @create: 2025−12-08 14:03
+ * @Version 1.0
+ **/
+
+@Data
+@NoArgsConstructor
+public class FirstdataRequestDTO {
+    String key;
+    String secret;
+    long clientRequestId;
+    long time ;
+    String hmacBase64;
+
+}