UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'a4hFMzmtrk2BwyTr29MfRVYXj8eIqh76GMkkDL9mX+0=' 
WHERE 
  key_id = '8512f1b6237be625b8a2dd3ef70215f49a0303d259ccaf7e3147036b165a6a53' 
  AND (
    token = 'a4hFMzmtrk2BwyTr29MfRVYXj8eIqh76GMkkDL9mX+0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )