Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQA/w8Mb6BPL6VPDsTEFe7hXLrKC/4CYHv+GVRYADOH9tyPpI6PRkGXG67u/… (1,748 chars)"
  }
}