UPDATE 
  tmall_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'i20sJNpzTLWjbKRbffv+C1kziHgkWE49xvUSL2JmE4U=' 
WHERE 
  key_id = '2be910f551c53c788a868fee83676680f899e3ce05449f831affc87b4d46462d' 
  AND (
    token = 'i20sJNpzTLWjbKRbffv+C1kziHgkWE49xvUSL2JmE4U=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )