Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwH3dngZMU2Mq7SlpPWy7MRspDfOq8e6E4ywciyONsPqeFw1XhgRJ/tNZIr/… (844 chars)"
  }
}