UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'K79YMb7u2WR6ujsy5aEsRGNY9XACoTb7g2hRgv4ynv0=' 
WHERE 
  key_id = '5462de56f17c106a7f4667e57abafb9c70889699275e35f85c48c56938c44e44' 
  AND (
    token = 'K79YMb7u2WR6ujsy5aEsRGNY9XACoTb7g2hRgv4ynv0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )