UPDATE 
  tmall_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MxRwpkzIJhDY7Zq+HjtJK/o9e5r5p8Uu7z1aKyx+caA=' 
WHERE 
  key_id = '488a8eb25338aab494e47a1203c876403d4b080d879977c643480a46d1f4c1be' 
  AND (
    token = 'MxRwpkzIJhDY7Zq+HjtJK/o9e5r5p8Uu7z1aKyx+caA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )