UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'lVdCnNz8ONWf7MqjAbZc+1f1d6ohWGA//GgPfMP68ig=' 
WHERE 
  key_id = '519291867f007539ac74ad9ce398b01be0e977fe7829cdab704c6eef37559fd9' 
  AND (
    token = 'lVdCnNz8ONWf7MqjAbZc+1f1d6ohWGA//GgPfMP68ig=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )