Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQCqSJ4AjneTUvsadBR8W79zy3ofsK3k6oUpF2Q4bXjhBA1zi+Tzrh3NQqnA… (1,748 chars)"
  }
}