Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwE0DdUwC/Nc4tZalNf4xm8lBXZMXQC26uDxR97w2FRz6iiIXXjZXkED2Bpb… (844 chars)"
  }
}