Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwEtd3pUvsWQCSOoaWIzjN5aH7/+Dc3fYXXi3LTDhDH+N3CGSmqUBDCTIYlp… (844 chars)"
  }
}