diff --git a/utils/src/main/java/one/nem/lacerta/utils/LacertaLogger.java b/utils/src/main/java/one/nem/lacerta/utils/LacertaLogger.java
index f49da584..64076771 100644
--- a/utils/src/main/java/one/nem/lacerta/utils/LacertaLogger.java
+++ b/utils/src/main/java/one/nem/lacerta/utils/LacertaLogger.java
@@ -1,5 +1,7 @@
 package one.nem.lacerta.utils;
 
+import one.nem.lacerta.utils.model.KeyValueLog;
+
 public interface LacertaLogger {
 
     void info(String tag, String message);
@@ -9,4 +11,7 @@ public interface LacertaLogger {
     void trace(String tag, String message);
     void fatal(String tag, String message);
 
+    String buildKVMessage(KeyValueLog... logs);
+    // With name
+    String buildKVMessage(String name, KeyValueLog... logs);
 }
diff --git a/utils/src/main/java/one/nem/lacerta/utils/impl/LacertaLoggerImpl.java b/utils/src/main/java/one/nem/lacerta/utils/impl/LacertaLoggerImpl.java
index aba337d8..d2b35dd2 100644
--- a/utils/src/main/java/one/nem/lacerta/utils/impl/LacertaLoggerImpl.java
+++ b/utils/src/main/java/one/nem/lacerta/utils/impl/LacertaLoggerImpl.java
@@ -5,6 +5,8 @@ import android.util.Log;
 import javax.inject.Inject;
 
 import one.nem.lacerta.utils.LacertaLogger;
+import one.nem.lacerta.utils.model.KeyValueLog;
+
 public class LacertaLoggerImpl implements LacertaLogger{
 
     @Inject
@@ -40,4 +42,30 @@ public class LacertaLoggerImpl implements LacertaLogger{
     public void fatal(String tag, String message) {
         Log.wtf(tag, message);
     }
+
+    @Override
+    public String buildKVMessage(KeyValueLog... logs) {
+        StringBuilder builder = new StringBuilder();
+        for (KeyValueLog log : logs) {
+            builder.append(log.getKey());
+            builder.append(": ");
+            builder.append(log.getValue());
+            builder.append("\n");
+        }
+        return builder.toString();
+    }
+
+    @Override
+    public String buildKVMessage(String name, KeyValueLog... logs) {
+        StringBuilder builder = new StringBuilder();
+        builder.append(name);
+        builder.append("\n");
+        for (KeyValueLog log : logs) {
+            builder.append(log.getKey());
+            builder.append(": ");
+            builder.append(log.getValue());
+            builder.append("\n");
+        }
+        return builder.toString();
+    }
 }
diff --git a/utils/src/main/java/one/nem/lacerta/utils/model/KeyValueLog.java b/utils/src/main/java/one/nem/lacerta/utils/model/KeyValueLog.java
new file mode 100644
index 00000000..e33d0355
--- /dev/null
+++ b/utils/src/main/java/one/nem/lacerta/utils/model/KeyValueLog.java
@@ -0,0 +1,31 @@
+package one.nem.lacerta.utils.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;
+    }
+
+}