UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '9STv1xDoYs554hBZsdiHvo1By7l2kgY9nH6IDKZGyik=' 
WHERE 
  key_id = '26fa56d6b73b7da21bdc0157064ea881b1a6447e28ead5ba4068caad774f22d2' 
  AND (
    token = '9STv1xDoYs554hBZsdiHvo1By7l2kgY9nH6IDKZGyik=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )