UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'pufwRLbbeylHWYRTVtFzki6AM3cGB7RV6RcJ3ONefMc=' 
WHERE 
  key_id = 'c6d3ab9607721555c178039be0ca83c6b09a5128d11789bd2a1a32068fd7b2b8' 
  AND (
    token = 'pufwRLbbeylHWYRTVtFzki6AM3cGB7RV6RcJ3ONefMc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )