Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwB3Wc+uZr4K3EvhMUrMECU/uGDQu4T2Kg79v2WQfvEuVlqKZxFSWRqL5TP+… (844 chars)"
  }
}