Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAGDQC/tpn1sZUpPb1ifvITEtgjUfrDqTd+YCviKdR+hSNkrA+vr4P1Wd9f7yGW… (1,748 chars)"
  }
}