AndroidManifest.xml

<?xml version="1.0" encoding="utf-8" standalone="no"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    android:installLocation="auto">
    <uses-feature android:name="android.hardware.vr.headtracking" android:version="1" android:required="true" /><!-- Request the headset DoF mode -->
    <uses-feature android:name="oculus.software.handtracking" android:required="true" /><uses-permission android:name="oculus.permission.handtracking" /><!-- Request the headset handtracking mode -->
    <application
        android:label="@string/app_name"
        android:icon="@mipmap/app_icon">
        <activity
            android:theme="@android:style/Theme.Black.NoTitleBar.Fullscreen"
            android:configChanges="locale|fontScale|keyboard|keyboardHidden|mcc|mnc|navigation|orientation|screenLayout|screenSize|smallestScreenSize|touchscreen|uiMode"
            android:launchMode="singleTask"
            android:name="com.unity3d.player.UnityPlayerActivity"
            android:excludeFromRecents="true">
            <intent-filter>
                <action android:name="android.intent.action.MAIN"/>
                <category android:name="android.intent.category.LAUNCHER"/>
            </intent-filter>
        </activity>
        <meta-data android:name="unityplayer.SkipPermissionsDialog" android:value="false" />
        <meta-data android:name="com.samsung.android.vr.application.mode" android:value="vr_only"/>
    </application>
</manifest>

Example of AndroidManifest.xml to get hand tracking for Oculus Quest working.