Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwDzDcU9gxW+CTAgHO2Bh/bZhveMxqczPZXeHvaZhpcCv3CzNHWK7Vp/D8Bu… (844 chars)"
  }
}