UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '0tWkt5vqtSiEuU1BQ1HZ9sibgRXHUr7lrPSfn7pAxqE=' 
WHERE 
  key_id = 'a50cbb661a9021fbad742454e902d9f5469eacc73b5763a794b589297fd63d2d' 
  AND (
    token = '0tWkt5vqtSiEuU1BQ1HZ9sibgRXHUr7lrPSfn7pAxqE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )