import aiohttp

user_list = [
    {
        'user': '[email protected]',
        'pass': 'qwerty123',
        'proxy_url': 'https://proxy.com',
        'proxy_user': 'proxy1',
        'proxy_pass': 'asdf123'
    }
]


async def main():

    async with aiohttp.ClientSession() as session:
        for user_data in user_list:
            proxy_auth = aiohttp.BasicAuth(
                user_data['proxy_user'],
                user_data['proxy_pass']
            )
            async with session.get(
                    "https://2ch.hk/registration",
                    json={
                        'user': user_data['user'],
                        'pass': user_data['pass']
                    },
                    proxy=user_data['proxy_url'],
                    proxy_auth=proxy_auth
            ) as resp:
                print(resp.status)