UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'k/yf9lJOhIwazpEnZMbD0iTXePrUb1SFYjSVLjOLIX0=' 
WHERE 
  key_id = '6c423b8b99e0e607e48ea6ca5162df293bf9da88b7c952ac99283b79496f38fa' 
  AND (
    token = 'k/yf9lJOhIwazpEnZMbD0iTXePrUb1SFYjSVLjOLIX0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )