Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwG7gnzP596QDWfWcgv+7qkLHSnHg2eftSR/Y0p5Gj4EFEIs1J7vORYz8Jzb… (844 chars)"
  }
}