UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'uG10OzkMWRag/Zmw5GljK66KKaBwgA9paQw+vHNrx04=' 
WHERE 
  key_id = '6c9944566ca361dfd4f038920761d9e25622b94932d661b52a93f851f2be67ba' 
  AND (
    token = 'uG10OzkMWRag/Zmw5GljK66KKaBwgA9paQw+vHNrx04=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )