Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwC+pq8aZqkm7gbxKVgaFh5LMaY/hTKyTnbNe7AjSIp7Z36Prtt8bh+j6Geg… (844 chars)"
  }
}