Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwD2ZsH0Gr8UpiYGOyUBl/tB1TD8DNuaWu2xNqYy4TNjpyGmvPl3kIGsyQh2… (844 chars)"
  }
}