UPDATE 
  tmall_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Ajd7kfiJYN3HAS3EDP5sFSn9W6VqFVMJP/2NP4h/UvI=' 
WHERE 
  key_id = '2eb52e8dd3820481cd47f0655e6840fc4b20a0a90c785b53ed21a9175df6266c' 
  AND (
    token = 'Ajd7kfiJYN3HAS3EDP5sFSn9W6VqFVMJP/2NP4h/UvI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )