UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '4x5ZaneugAKa+QGVzeQ29jNTtO1KXYs0A+tziw9389g=' 
WHERE 
  key_id = '29dc38c44150c81050d8be0a76f678c4306529775eb3f50ec8b8b9d798402735' 
  AND (
    token = '4x5ZaneugAKa+QGVzeQ29jNTtO1KXYs0A+tziw9389g=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )