UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '2vJbxzFwr2R3eU3rrrA4RKhgKzlqePM1FqxeScYemHY=' 
WHERE 
  key_id = '8a76e5a186098c4489accbfbc774a716085b0ee0c8bdee643ac1e1e3704f4800' 
  AND (
    token = '2vJbxzFwr2R3eU3rrrA4RKhgKzlqePM1FqxeScYemHY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )