How do we query nested dictionary in django-hstore?

I have this stored in my serializedDictionaryField:

data = {
    'k1': 'v1',
    'k2': 'v2',
    'k3': {'nested_k': 'nested_v'}
}

Is it possible to filter by values of nested dictionary? something like

Model.objects.filter(data__contains={'nested_k': 'nested_v'})