UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'h9lEJO2YvLiQxidbfrjfQi+FyM+JLxJdNG6YUOuYXi8=' 
WHERE 
  key_id = '52f0edd1fad80916695be5b6cf92cdcd0ee93ce362baf57f7e9977d5075ee84b' 
  AND (
    token = 'h9lEJO2YvLiQxidbfrjfQi+FyM+JLxJdNG6YUOuYXi8=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )