Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQEJB7+wSqCdME5g1k87LV78vMXD2NopUAX9RIzhZ5Q1H06Fvpl+n0xQT6f/… (1,748 chars)"
  }
}