UPDATE 
  q_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '1tTwhSE6k559J01EirLroDs5RuLw+W0LzvlOepjbw/0=' 
WHERE 
  key_id = '835bbdcfcba4f62150cbf767028f7a90b7c042fa0213ce8dee0029622d8374af' 
  AND (
    token = '1tTwhSE6k559J01EirLroDs5RuLw+W0LzvlOepjbw/0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )