UPDATE 
  tmall_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Gn8Ghyr755bQ+KxmxQUAObHdctc84O3UX8yeE0XZqIw=' 
WHERE 
  key_id = 'b56d8ea3118f4fa2f8002b0f293209ca24244d2b744c329d08a2cc99259422f7' 
  AND (
    token = 'Gn8Ghyr755bQ+KxmxQUAObHdctc84O3UX8yeE0XZqIw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )