Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwGO5Mk5sdpXYL9Qm4oUsJlWgRLnJhk7IYavVG0QH7xUs3p+IVaM50Uf6/n1… (844 chars)"
  }
}