UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'g6vzwYWyyeoIHU0FgRyCsyzzfiJsB+OgVScXlvjFXrI=' 
WHERE 
  key_id = '51f737929195bf17a64ed6af82f980de423e43f57c65f8500be76b4cf3dfb5ea' 
  AND (
    token = 'g6vzwYWyyeoIHU0FgRyCsyzzfiJsB+OgVScXlvjFXrI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )