Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwBTFm0eTBLdSZU7MvqXafFauM92pEPFGY6xj2jM7HBttBBSbzWz3+U9D4ia… (844 chars)"
  }
}