UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'SSDKjVxnZuhGCyDZWzJKcIGrvw7icDCdu3KzZqlKstk=' 
WHERE 
  key_id = '6306c007e9c9f050e79607378bad0c1e76b4338b01672e5030d592008aa65b95' 
  AND (
    token = 'SSDKjVxnZuhGCyDZWzJKcIGrvw7icDCdu3KzZqlKstk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )