UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'V/xBk2p1YqzBYU7NAe9AqbA0GuY6YRcivrUa1BlNCtA=' 
WHERE 
  key_id = '8254b1d77bf6681c306a35513265f28686f9d775d02a73395283a83fb7e1d395' 
  AND (
    token = 'V/xBk2p1YqzBYU7NAe9AqbA0GuY6YRcivrUa1BlNCtA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )