UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Po850zSXrG/h0iClSJBbq24iXpEg4HoR6frqEhNl/AI=' 
WHERE 
  key_id = '9614688dac9a854e7f1bafa6f2c7d8dc43279faa2e8da2ea872a80d38531f821' 
  AND (
    token = 'Po850zSXrG/h0iClSJBbq24iXpEg4HoR6frqEhNl/AI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )