diff --git a/kmp-common-sdk b/kmp-common-sdk
index bf69265fe..f03f1897a 160000
--- a/kmp-common-sdk
+++ b/kmp-common-sdk
@@ -1 +1 @@
-Subproject commit bf69265fec8f09bd93d7b8d10eac3a41320591dd
+Subproject commit f03f1897a35519502cbe513adc8dc3d4a3a352a9
diff --git a/mindbox-huawei-starter/build.gradle.kts b/mindbox-huawei-starter/build.gradle.kts
index 084b0628c..f114e2835 100644
--- a/mindbox-huawei-starter/build.gradle.kts
+++ b/mindbox-huawei-starter/build.gradle.kts
@@ -10,7 +10,8 @@ android {
 
     defaultConfig {
         consumerProguardFiles(
-            "consumer-rules.pro"
+            "consumer-rules.pro",
+            "../proguard/proguard-huawei.pro"
         )
     }
 
diff --git a/proguard/proguard-huawei.pro b/proguard/proguard-huawei.pro
index 7a7ed6b62..cdd68b40f 100644
--- a/proguard/proguard-huawei.pro
+++ b/proguard/proguard-huawei.pro
@@ -1,6 +1,6 @@
 -keepattributes *Annotation*
 -keepattributes Exceptions
--keepattributes InnerClasses
+-keepattributes InnerClasses,EnclosingMethod
 -keepattributes Signature
 -keepattributes SourceFile,LineNumberTable
 -keep class com.huawei.hianalytics.**{*;}
@@ -8,4 +8,22 @@
 -keep class com.huawei.hms.**{*;}
 -keep class com.huawei.hms.ads.** { *; }
 -keep interface com.huawei.hms.ads.** { *; }
--keep class cloud.mindbox.mindbox_huawei.MindboxHuawei { *; }
\ No newline at end of file
+-keep class cloud.mindbox.mindbox_huawei.MindboxHuawei { *; }
+
+-dontwarn android.telephony.HwTelephonyManager
+-dontwarn com.huawei.android.os.BuildEx$VERSION
+-dontwarn com.huawei.hianalytics.process.HiAnalyticsConfig$Builder
+-dontwarn com.huawei.hianalytics.process.HiAnalyticsConfig
+-dontwarn com.huawei.hianalytics.process.HiAnalyticsInstance$Builder
+-dontwarn com.huawei.hianalytics.process.HiAnalyticsInstance
+-dontwarn com.huawei.hianalytics.process.HiAnalyticsManager
+-dontwarn com.huawei.hianalytics.util.HiAnalyticTools
+-dontwarn com.huawei.hms.availableupdate.UpdateAdapterMgr
+-dontwarn com.huawei.libcore.io.ExternalStorageFile
+-dontwarn com.huawei.libcore.io.ExternalStorageFileInputStream
+-dontwarn com.huawei.libcore.io.ExternalStorageFileOutputStream
+-dontwarn com.huawei.libcore.io.ExternalStorageRandomAccessFile
+-dontwarn org.bouncycastle.crypto.BlockCipher
+-dontwarn org.bouncycastle.crypto.engines.AESEngine
+-dontwarn org.bouncycastle.crypto.prng.SP800SecureRandom
+-dontwarn org.bouncycastle.crypto.prng.SP800SecureRandomBuilder
\ No newline at end of file
diff --git a/sdk/consumer-rules.pro b/sdk/consumer-rules.pro
index 80767f1d5..77ab8f4ce 100644
--- a/sdk/consumer-rules.pro
+++ b/sdk/consumer-rules.pro
@@ -1,6 +1,15 @@
-# Keep model classes
 -keepclassmembers class cloud.mindbox.mobile_sdk.models** { *; }
 -keep class cloud.mindbox.mobile_sdk.MindboxConfiguration { *; }
 -keep class cloud.mindbox.mobile_sdk.pushes.PushAction { *; }
 -keepclassmembers class cloud.mindbox.mobile_sdk.inapp.data.dto.** { *; }
 -keep class cloud.mindbox.mobile_sdk.inapp.domain.models** { *; }
+
+-keepclasseswithmembers,allowobfuscation class cloud.mindbox.** {
+    @com.google.gson.annotations.SerializedName <fields>;
+    <init>(...);
+}
+
+-keepclassmembers class cloud.mindbox.** {
+    <init>(...);
+    <fields>;
+}
diff --git a/sdk/src/main/java/cloud/mindbox/mobile_sdk/models/Event.kt b/sdk/src/main/java/cloud/mindbox/mobile_sdk/models/Event.kt
index 567d05ff4..970c20bbd 100644
--- a/sdk/src/main/java/cloud/mindbox/mobile_sdk/models/Event.kt
+++ b/sdk/src/main/java/cloud/mindbox/mobile_sdk/models/Event.kt
@@ -3,6 +3,7 @@ package cloud.mindbox.mobile_sdk.models
 import androidx.room.Entity
 import androidx.room.PrimaryKey
 import cloud.mindbox.mobile_sdk.managers.DbManager.EVENTS_TABLE_NAME
+import com.google.gson.annotations.SerializedName
 import com.google.gson.reflect.TypeToken
 import java.util.UUID
 
@@ -18,7 +19,10 @@ internal data class Event(
     val body: String? = null,
 )
 
-internal sealed class EventType(val operation: String, val endpoint: String) {
+internal sealed class EventType(
+    @SerializedName("operation") val operation: String,
+    @SerializedName("endpoint") val endpoint: String,
+) {
 
     companion object {
 
diff --git a/sdk/src/main/java/cloud/mindbox/mobile_sdk/pushes/handler/MessageHandlingState.kt b/sdk/src/main/java/cloud/mindbox/mobile_sdk/pushes/handler/MessageHandlingState.kt
index c3cde01d2..3c84e86b1 100644
--- a/sdk/src/main/java/cloud/mindbox/mobile_sdk/pushes/handler/MessageHandlingState.kt
+++ b/sdk/src/main/java/cloud/mindbox/mobile_sdk/pushes/handler/MessageHandlingState.kt
@@ -1,5 +1,7 @@
 package cloud.mindbox.mobile_sdk.pushes.handler
 
+import com.google.gson.annotations.SerializedName
+
 /**
  * Current conditions under which the image is loaded
  *
@@ -7,6 +9,8 @@ package cloud.mindbox.mobile_sdk.pushes.handler
  * @param isMessageDisplayed The message has been shown
  */
 public data class MessageHandlingState(
+    @SerializedName("attemptNumber")
     val attemptNumber: Int,
+    @SerializedName("isMessageDisplayed")
     val isMessageDisplayed: Boolean,
 )
diff --git a/sdk/src/test/java/cloud/mindbox/mobile_sdk/converters/MindboxRoomConverterTest.kt b/sdk/src/test/java/cloud/mindbox/mobile_sdk/converters/MindboxRoomConverterTest.kt
new file mode 100644
index 000000000..40dd8f24f
--- /dev/null
+++ b/sdk/src/test/java/cloud/mindbox/mobile_sdk/converters/MindboxRoomConverterTest.kt
@@ -0,0 +1,36 @@
+package cloud.mindbox.mobile_sdk.converters
+
+import cloud.mindbox.mobile_sdk.models.EventType
+import org.junit.Assert.assertEquals
+import org.junit.Test
+
+// Events queued by earlier SDK versions sit in the database in this format and must still be readable.
+class MindboxRoomConverterTest {
+
+    @Test
+    fun eventTypeToString_writesOrdinalAndJsonNames() {
+        val stored = MindboxRoomConverter.eventTypeToString(EventType.SyncOperation("Website.Operation"))
+
+        assertEquals("""6;{"operation":"Website.Operation","endpoint":"/v3/operations/sync"}""", stored)
+    }
+
+    @Test
+    fun stringToEventType_readsStoredOperation() {
+        val eventType = MindboxRoomConverter.stringToEventType(
+            """5;{"operation":"Website.Operation","endpoint":"/v3/operations/async"}"""
+        )
+
+        assertEquals(EventType.AsyncOperation::class, eventType::class)
+        assertEquals("Website.Operation", eventType.operation)
+        assertEquals("/v3/operations/async", eventType.endpoint)
+    }
+
+    @Test
+    fun stringToEventType_readsStoredDataObject() {
+        val eventType = MindboxRoomConverter.stringToEventType(
+            """0;{"operation":"MobilePush.ApplicationInstalled","endpoint":"/v3/operations/async"}"""
+        )
+
+        assertEquals(EventType.AppInstalled, eventType)
+    }
+}