diff --git a/Armadillo/src/main/java/com/scribd/armadillo/playback/PlaybackEngine.kt b/Armadillo/src/main/java/com/scribd/armadillo/playback/PlaybackEngine.kt
index 5935668..51fc52f 100644
--- a/Armadillo/src/main/java/com/scribd/armadillo/playback/PlaybackEngine.kt
+++ b/Armadillo/src/main/java/com/scribd/armadillo/playback/PlaybackEngine.kt
@@ -1,10 +1,15 @@
 package com.scribd.armadillo.playback
 
 import android.content.Context
+import android.os.Handler
+import android.os.Looper
+import android.util.Log
 import androidx.annotation.VisibleForTesting
 import com.google.android.exoplayer2.ExoPlayer
 import com.google.android.exoplayer2.PlaybackParameters
 import com.google.android.exoplayer2.Player
+import com.google.android.exoplayer2.drm.DrmSessionEventListener
+import com.google.android.exoplayer2.source.MediaSource
 import com.google.android.exoplayer2.upstream.cache.Cache
 import com.scribd.armadillo.ArmadilloPlayerChoreographer
 import com.scribd.armadillo.Constants
@@ -28,6 +33,7 @@ import com.scribd.armadillo.models.Chapter
 import com.scribd.armadillo.models.PlaybackState
 import com.scribd.armadillo.playback.mediasource.MediaSourceRetriever
 import com.scribd.armadillo.time.milliseconds
+import java.lang.Exception
 import javax.inject.Inject
 import javax.inject.Named
 
@@ -74,6 +80,9 @@ internal interface AudioPlaybackEngine {
  * @property downloadCache
  */
 internal class ExoplayerPlaybackEngine(private var audioPlayable: AudioPlayable) : AudioPlaybackEngine {
+    private companion object {
+        const val TAG = "ExoplayerPlaybackEngine"
+    }
 
     init {
         Injector.mainComponent.inject(this)
@@ -124,6 +133,37 @@ internal class ExoplayerPlaybackEngine(private var audioPlayable: AudioPlayable)
         exoPlayer = createExoplayerInstance(context, audioAttributes.exoPlayerAttrs)
 
         val mediaSource = mediaSourceRetriever.generateMediaSource(audioPlayable.request, context)
+        mediaSource.addDrmEventListener(Handler(Looper.getMainLooper()), object : DrmSessionEventListener {
+            override fun onDrmSessionAcquired(windowIndex: Int, mediaPeriodId: MediaSource.MediaPeriodId?, state: Int) {
+                super.onDrmSessionAcquired(windowIndex, mediaPeriodId, state)
+                Log.d(TAG, "Drm session acquired")
+            }
+
+            override fun onDrmKeysLoaded(windowIndex: Int, mediaPeriodId: MediaSource.MediaPeriodId?) {
+                super.onDrmKeysLoaded(windowIndex, mediaPeriodId)
+                Log.d(TAG, "Drm keys loaded")
+            }
+
+            override fun onDrmSessionManagerError(windowIndex: Int, mediaPeriodId: MediaSource.MediaPeriodId?, error: Exception) {
+                Log.d(TAG, "Drm session manager error: $error")
+                super.onDrmSessionManagerError(windowIndex, mediaPeriodId, error)
+            }
+
+            override fun onDrmKeysRestored(windowIndex: Int, mediaPeriodId: MediaSource.MediaPeriodId?) {
+                super.onDrmKeysRestored(windowIndex, mediaPeriodId)
+                Log.d(TAG, "Drm keys restored")
+            }
+
+            override fun onDrmKeysRemoved(windowIndex: Int, mediaPeriodId: MediaSource.MediaPeriodId?) {
+                super.onDrmKeysRemoved(windowIndex, mediaPeriodId)
+                Log.d(TAG, "Drm keys removed")
+            }
+
+            override fun onDrmSessionReleased(windowIndex: Int, mediaPeriodId: MediaSource.MediaPeriodId?) {
+                super.onDrmSessionReleased(windowIndex, mediaPeriodId)
+                Log.d(TAG, "Drm session released")
+            }
+        })
         exoPlayer.setMediaSource(mediaSource)
         exoPlayer.prepare()
 
diff --git a/Armadillo/src/main/java/com/scribd/armadillo/playback/mediasource/DashMediaSourceGenerator.kt b/Armadillo/src/main/java/com/scribd/armadillo/playback/mediasource/DashMediaSourceGenerator.kt
index eeb593b..7224644 100644
--- a/Armadillo/src/main/java/com/scribd/armadillo/playback/mediasource/DashMediaSourceGenerator.kt
+++ b/Armadillo/src/main/java/com/scribd/armadillo/playback/mediasource/DashMediaSourceGenerator.kt
@@ -1,6 +1,9 @@
 package com.scribd.armadillo.playback.mediasource
 
 import android.content.Context
+import android.util.Base64
+import android.util.Log
+import com.google.android.exoplayer2.C
 import com.google.android.exoplayer2.MediaItem
 import com.google.android.exoplayer2.offline.Download
 import com.google.android.exoplayer2.offline.DownloadHelper
@@ -15,6 +18,8 @@ import com.scribd.armadillo.download.CacheManager
 import com.scribd.armadillo.download.DownloadTracker
 import com.scribd.armadillo.extensions.toUri
 import com.scribd.armadillo.models.AudioPlayable
+import org.json.JSONObject
+import java.nio.charset.Charset
 import javax.inject.Inject
 
 internal class DashMediaSourceGenerator @Inject constructor(
@@ -31,9 +36,35 @@ internal class DashMediaSourceGenerator @Inject constructor(
             }
         }
 
+        val licenseHeader = mapOf(
+            "userId" to "296700362",
+            "sessionId" to "296700362-469909861",
+            "merchant" to "scribd"
+        )
+
+        val toString = JSONObject(licenseHeader).toString()
+        Log.d("Dash", "Has JSON: $toString")
+
+        val base64String = Base64.encode(
+            toString.toByteArray(),
+            Base64.DEFAULT
+        ).toString(Charset.defaultCharset()).replace("\n", "")
+        Log.d("Dash", "Has base64: $base64String")
+
+        val headersMap = mapOf(
+            "x-dt-custom-data" to base64String
+        )
+        Log.d("Dash", "Headers map: $headersMap")
         val mediaItem = MediaItem.Builder()
             .setUri(request.url)
 
+            .setDrmConfiguration(MediaItem.DrmConfiguration.Builder(C.WIDEVINE_UUID)
+                .setLicenseUri("https://lic.staging.drmtoday.com/license-proxy-widevine/cenc/?specConform=true")
+                .setLicenseRequestHeaders(
+                    headersMap
+                )
+                .build()
+            )
             .build()
 
         return DashMediaSource.Factory(buildDataSourceFactory(context, request))