Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwGU7jb1SiKM7bbo2sXX5GyEXZ0D1B6vNo5eZGzWYbtC/Fkt3Nlwu66QPQqD… (844 chars)"
  }
}