Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwG68qw/GkKIt1pBgRPVfY1BACslSL/0y9YiVJkiTg/JXAB4um4VY1r3n3Ju… (844 chars)"
  }
}