Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwEP+2dTy9E3nZdIUzb/XqlvJLbPq2BO752SPAYRPKM7h0T9b3E1uEkzvQIL… (844 chars)"
  }
}