The final request and magic

instagram_login_request.py

phone_id = generate_uuid()
uuid = generate_uuid()
device_id = generate_device_id(hex_digest(USERNAME, USERNAME))

data = json.dumps({
    'phone_id': phone_id, 
    'device_id': device_id,
    'guid': uuid,
    'username': USERNAME,
    'password': PASSWORD,
})

data = generate_signature(data)

session = requests.Session()
session.headers.update(REQUEST_HEADERS)
session.headers.update({'User-Agent': user_agent})
response = session.post(LOGIN_URL, data=data)

assert response.status_code == 200