UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '3P9GR46jmAPER99MdTdTQkgjnX+L3TeT1GgDo+mr0WY=' 
WHERE 
  key_id = 'a848a304de454de6675627f7cbdee8f590ce2c0ddeda841d87093b3559b82eb2' 
  AND (
    token = '3P9GR46jmAPER99MdTdTQkgjnX+L3TeT1GgDo+mr0WY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )