UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'M21/7StLd9k51T9pO7JeAKsVzzO+8hE44u0itWttRUg=' 
WHERE 
  key_id = '16d064a794dec81dea969056b2bdaa647b792169d871a56b06b34d321c6768e1' 
  AND (
    token = 'M21/7StLd9k51T9pO7JeAKsVzzO+8hE44u0itWttRUg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )