UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'OL5USAxL7YaHiPSPqjFUDMi7nUhTs23MN6IRvHIystw=' 
WHERE 
  key_id = '1819697dd4d6b02df436cb4b2749e58fb2eae2f097d2b1e9b9103b1638da6442' 
  AND (
    token = 'OL5USAxL7YaHiPSPqjFUDMi7nUhTs23MN6IRvHIystw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )