Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwBE4xsaU6f3UP2EdtVHq3O0tyjHV9YzgnrCb44Hux+JTTQQSm+3vwNV9xeR… (844 chars)"
  }
}