UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'xqXUCKM8iopUFlsfZkHQHuSQHr63f9Kh5RULyghek70=' 
WHERE 
  key_id = '851f6d15515735557b83e8937806cd777d839e575844a9fb55b7028306a87c5a' 
  AND (
    token = 'xqXUCKM8iopUFlsfZkHQHuSQHr63f9Kh5RULyghek70=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )