Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwGGru7LobB1P3lQPW/pNbUyp7jxK8i71+jY5k5g1vuVSzyvJPMbKAyO6Qnu… (844 chars)"
  }
}