UPDATE 
  tmall_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'KVSJGYiXTbUbmX8/qS8MKyOB3u4H6pI2KrnGgCqwJTo=' 
WHERE 
  key_id = '56be7ff98a0787a17b1e2e70200a1e830de33a47a1426b2ee6f0a1d0980e7b5c' 
  AND (
    token = 'KVSJGYiXTbUbmX8/qS8MKyOB3u4H6pI2KrnGgCqwJTo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )