Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQHibUQKQm7l5t2PB7EVbZJ448sFnmT/ZQA3ruMnfq3LWw4rbsdu85x6/zGX… (1,748 chars)"
  }
}