UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '2hK26HIuYt/BaA450GTdpB3seDjj+FSgVY1YMQc1C78=' 
WHERE 
  key_id = '6559074ce0f1bec8eebaa507f290bed85e72c94f3e0eadbab933e83f96f5aaf4' 
  AND (
    token = '2hK26HIuYt/BaA450GTdpB3seDjj+FSgVY1YMQc1C78=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )