UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'JyprMAY1k9rAfbGczWpBZOmFWGVOJ2ydkdwfUiOXHsI=' 
WHERE 
  key_id = '1924d04e2e12cdedae55b5ae2c1354d5471c29743365dc0304d36e42ba7cef2d' 
  AND (
    token = 'JyprMAY1k9rAfbGczWpBZOmFWGVOJ2ydkdwfUiOXHsI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00050