Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwGNKgtxSuCzW6IpIHp4rUFPr3Cu9/gAEXY/m4M8r+x8wXdxz7TfR42CzHtK… (844 chars)"
  }
}