diff --git a/model/src/main/java/one/nem/lacerta/model/KeyValueLog.java b/model/src/main/java/one/nem/lacerta/model/KeyValueLog.java
new file mode 100644
index 00000000..ac5ea426
--- /dev/null
+++ b/model/src/main/java/one/nem/lacerta/model/KeyValueLog.java
@@ -0,0 +1,31 @@
+package one.nem.lacerta.model;
+
+public class KeyValueLog {
+
+    String key;
+    String value;
+
+    public KeyValueLog(String key, String value) {
+        this.key = key;
+        this.value = value;
+    }
+
+    // Getter
+    public String getKey() {
+        return key;
+    }
+
+    public String getValue() {
+        return value;
+    }
+
+    // Setter
+    public void setKey(String key) {
+        this.key = key;
+    }
+
+    public void setValue(String value) {
+        this.value = value;
+    }
+
+}