UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '/Kl3zjoKFdXyJm0GqB9DYzJN7jxrbfC0UF2xdZi1HlE=' 
WHERE 
  key_id = '964e39df47ea67503d76d8326353989b67fce5c23e879c0e5bc2576c262908e3' 
  AND (
    token = '/Kl3zjoKFdXyJm0GqB9DYzJN7jxrbfC0UF2xdZi1HlE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )