Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwDH8wSy9+6KXBLbeJ/CtK/dZhAIYyhD7g+1uCg7aGQiSEesf9WBu3vF2ifZ… (844 chars)"
  }
}