UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '21lu5pDr9yCps2rXwUGzejjUJCW7Ng++tWFNI+qJq1Q=' 
WHERE 
  key_id = 'c5c0de62b5c5ff9d3c8c3657ebc100db49e0444d904c50b22bb56bb26a308850' 
  AND (
    token = '21lu5pDr9yCps2rXwUGzejjUJCW7Ng++tWFNI+qJq1Q=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )