UPDATE 
  tmall_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'lxVnQ1m9XLzfJTkrqGHi9dx4khL36IylpAmWD782RfA=' 
WHERE 
  key_id = '6ba1eb18b92ad176feeee5c53540fc101a195453e21b69b1ba753200a582c930' 
  AND (
    token = 'lxVnQ1m9XLzfJTkrqGHi9dx4khL36IylpAmWD782RfA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )