UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'a8LhNR/StRa0cO+ejxsNOuZfvga86NI8KDvj//UO78g=' 
WHERE 
  key_id = '5a6cc74ca55c961a240ce7c3385f850e595c66c7322611eae2902602c442c15b' 
  AND (
    token = 'a8LhNR/StRa0cO+ejxsNOuZfvga86NI8KDvj//UO78g=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )