Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwFuKnw8w9FzgguhdBLsyy55bV6L3PF+Gldt4Y4JDJDjTFnTxSoW57iIYvdZ… (844 chars)"
  }
}