UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'x1tGxcJ34s2Vinr2BOWZ8dQbSB//GSed5+HMp1AMync=' 
WHERE 
  key_id = 'a7e38e2dffccadbc6b9cba7aa6a718b0bbbedf21fb7c47b5372882762a193184' 
  AND (
    token = 'x1tGxcJ34s2Vinr2BOWZ8dQbSB//GSed5+HMp1AMync=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )