UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'DN6k17eLHqKInYLfN0f01wZdixq8xZvtNOWu90TCZZ0=' 
WHERE 
  key_id = '6525730e5bc57e610e377a85606f5e2c8e943373e59fec010543e5cceb01f694' 
  AND (
    token = 'DN6k17eLHqKInYLfN0f01wZdixq8xZvtNOWu90TCZZ0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )