UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'PBXk1cChWQt+uU8uCh+KwrdcfBai2/ErZxuuzAY2sZ0=' 
WHERE 
  key_id = '16b3e4c6f1d0a640d44450e59178cbda86a5ded824316ed699b94dfbd3515ee0' 
  AND (
    token = 'PBXk1cChWQt+uU8uCh+KwrdcfBai2/ErZxuuzAY2sZ0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )