UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Q6UdSuMVHNJZeFilCnoOXVkbIs9laSrmH51VshtG/jI=' 
WHERE 
  key_id = '0a91e2e3572e922288c0843a4ddd80d633388290066576752c3a4a4671ce9385' 
  AND (
    token = 'Q6UdSuMVHNJZeFilCnoOXVkbIs9laSrmH51VshtG/jI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )