UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MM0MjYiYZ9lwl6oLXv6TSDT/u8MC9tmaxoAnK3StacM=' 
WHERE 
  key_id = 'eb7a16e9a409525be88d8f727ba243b367f76f8c1eff5eed3ea975a319e15ea0' 
  AND (
    token = 'MM0MjYiYZ9lwl6oLXv6TSDT/u8MC9tmaxoAnK3StacM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )