Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwCx6WCa7QR+Obb2n8/aEzgB8sNMOj88SqLW1aI0mGOOHjETS4Auj6/bJBJ0… (844 chars)"
  }
}