UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '6dgQ+uufPMJJzZk8NDwKhENqL8nMBXWJpE1BVtSVL00=' 
WHERE 
  key_id = '91384e9e346f8581fe28919e53ad86ccbc40719881f74b093accd9ab78918210' 
  AND (
    token = '6dgQ+uufPMJJzZk8NDwKhENqL8nMBXWJpE1BVtSVL00=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )