UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Vb3cYDaEA3AQ8RzsSQ5jxgzujK8yot3nUKJlbZc6LgQ=' 
WHERE 
  key_id = '50850a9fda5e7a5773ec04ed76021a194741d7df353bf141f93e4a7080cfe8e6' 
  AND (
    token = 'Vb3cYDaEA3AQ8RzsSQ5jxgzujK8yot3nUKJlbZc6LgQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )