[Fixed]-Django Rest Setup for Foreign key values

You need to use nested serializers. Here is example(might not work)

class SubscribeLocationSerializer(ModelSerializer):
    class Meta:
        model = SubscribeLocation

class NotifyCreateSerializer(ModelSerializer):
    subscribelocation_set = SubscribeLocationSerializer(many=True)
    class Meta:
        model = SubscribeAlert
        fields = ('category', 'user', 'status', 'attributes',
                  'subscribelocation_set')