UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '/5sMMr/uXpgmGd4RLRz7QMdsxlVbnDd3Dkw2WA7Y09w=' 
WHERE 
  key_id = '893a3b29d70d1d3091b900501a7eabc013ca2317d2968132b96e1734000c4ce8' 
  AND (
    token = '/5sMMr/uXpgmGd4RLRz7QMdsxlVbnDd3Dkw2WA7Y09w=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )