UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'a/sEy1vZ8OtxuYKjVO+maCA5cFZAgDljM8LymwGEfBw=' 
WHERE 
  key_id = '81b21e749fd23d0141d97792fe92439aef2d09e848c04689f472b7498f8b329f' 
  AND (
    token = 'a/sEy1vZ8OtxuYKjVO+maCA5cFZAgDljM8LymwGEfBw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )