Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwCYCtpXQHIeqNbDSRo/L5y8a+u8G9447R7J6fViK+Gsv2vb11eR4Iod8xqF… (844 chars)"
  }
}