UPDATE 
  q_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'oMxhnAYn1/2Na0seQ8emQ2RmG738MviJXGW+PaB29KI=' 
WHERE 
  key_id = '94b91b6cf78a759883188a5ff72e12ef55d5683fbbb52a742cbde0de531c54ab' 
  AND (
    token = 'oMxhnAYn1/2Na0seQ8emQ2RmG738MviJXGW+PaB29KI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )