UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'gn99VlS9iXVvY/3xM9oHt8lj49FoxU4OhNj4ZNi93lQ=' 
WHERE 
  key_id = '51e883c3481ea9359a889934d4333a03ee8ea39c8943e793dcd2bb3d4e959962' 
  AND (
    token = 'gn99VlS9iXVvY/3xM9oHt8lj49FoxU4OhNj4ZNi93lQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )