Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwCmpX5qixGbewtMd8bVbC8oZcaTzRO9Mfvl/2QH9f+jEHsANFQsC7KbKmiJ… (844 chars)"
  }
}