UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'QywBmN28oRZb6dN4Or2LrF9WqmpLcaf+De9T3UHouGA=' 
WHERE 
  key_id = '375b71e6f695895df44303f53d979a62176da6156e8fe673584afea90fc35178' 
  AND (
    token = 'QywBmN28oRZb6dN4Or2LrF9WqmpLcaf+De9T3UHouGA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )