How to return an existing action modified from a controller in Odoo 15?

Question

I made a controller from which I redirect the user to an existing action, this way:

@http.route('/url', type='http', auth='user')
def my_controller_method(self, the_used_ids, **kwargs):
    ...
    action = request.env.ref('module.action_xml_id', False)
    return request.redirect(
        '/web?&#min=1&limit=80&view_type=list&'
        'model=the.model&action=%s' % (action.id)
    )

But I would like to modify that existing action in order to set a domain for this particular case, and show only the IDs used in the controller, like this:

@http.route('/url', type='http', auth='user')
def my_controller_method(self, the_used_ids, **kwargs):
    ...
    action = request.env.ref('module.action_xml_id', False)
    action_dict = action.sudo().read()[0]
    action_dict['domain'] = [('id', 'in', the_used_ids)]
    return action_dict

The problem is that Odoo doesn't allow to return a dictionary from the controller, so my question is if someone knows how to do this.