UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '8+e+KiuYbtgWFe/kfnbY0u9yVhP0IQXYHYB1hRXf4Sg=' 
WHERE 
  key_id = 'e2810fda9f0083d58731857a59e9a31bfd29a196f5211faf5417eeb4479eb484' 
  AND (
    token = '8+e+KiuYbtgWFe/kfnbY0u9yVhP0IQXYHYB1hRXf4Sg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )