UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'fdklhw7nbtqK5koejsdT2qXbyXxozXWfLFauYF9KNGw=' 
WHERE 
  key_id = '51b8ae33246e0f42b3185870c360b8b9241ca619563e476bdeb1fd416bc1a54b' 
  AND (
    token = 'fdklhw7nbtqK5koejsdT2qXbyXxozXWfLFauYF9KNGw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )