Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwG/ZPEwVsf59b+Dw7mw42dcnxiczYhgxDz1WRaHo3/2RjKyJTdUQAFE93xY… (844 chars)"
  }
}