Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwH9hQ4JOm+SfJtxBDds1Fv6sF9zRp6SxF8B5rx6Xia1hwXDfHY9vbUPu9Vr… (844 chars)"
  }
}