UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '5xkTyYyUja0t/biW+UswR1N7X5tgWI16GP5WBg49V/0=' 
WHERE 
  key_id = '91e1e3b9b611fa427a13ffda18632740dac9aeea00286c18bbcb340a8936b91e' 
  AND (
    token = '5xkTyYyUja0t/biW+UswR1N7X5tgWI16GP5WBg49V/0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )