UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'gzZk2356i4pn4MfftbGPp0RvBeMYo4tuoIfoEcMhMq0=' 
WHERE 
  key_id = '6b639701d1d88a91d111989864f952212b15706e047ff305d3a35a9da388a04f' 
  AND (
    token = 'gzZk2356i4pn4MfftbGPp0RvBeMYo4tuoIfoEcMhMq0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )