support for editing subscriber features
diff --git a/xos/api/tenant/cord/subscriber.py b/xos/api/tenant/cord/subscriber.py
index 5884b82..7df8410 100644
--- a/xos/api/tenant/cord/subscriber.py
+++ b/xos/api/tenant/cord/subscriber.py
@@ -101,6 +101,8 @@
         identity = IdentitySerializer(required=False)
         related = serializers.DictField(required=False)
 
+        nested_fields = ["features", "identity"]
+
         class Meta:
             model = CordSubscriberNew
             fields = ('humanReadableName',
@@ -116,6 +118,17 @@
             obj = self.Meta.model(**validated_data)
             return obj
 
+        def update(self, instance, validated_data):
+            for k in validated_data.keys():
+                v = validated_data[k]
+                if k in self.nested_fields:
+                    d = getattr(instance,k)
+                    d.update(v)
+                    setattr(instance,k,d)
+                else:
+                    setattr(instance, k, v)
+            return instance
+
 # @ensure_csrf_cookie
 class CordSubscriberViewSet(XOSViewSet):
     base_name = "subscriber"