UPDATE 
  tmall_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'DwOBD+Po68sHDsTKPvVn+Sk5Xz9o3r89QXWNcITLssA=' 
WHERE 
  key_id = '84a248d451939639d57a54662d12f99e829dd7222517fe2436156d70b1b86e4f' 
  AND (
    token = 'DwOBD+Po68sHDsTKPvVn+Sk5Xz9o3r89QXWNcITLssA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )