UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '9WVbg2QrhSq0z9Ju2ZLR5yu0qLMk8eZrdfSlfoQ60/Y=' 
WHERE 
  key_id = 'c19e4656e832080f589fa32bc38e32ce3059a5b8c2c4f19ac866cbb73452f519' 
  AND (
    token = '9WVbg2QrhSq0z9Ju2ZLR5yu0qLMk8eZrdfSlfoQ60/Y=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )