Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHCD+usfVVsY2d6LxMPe9NyKQiS5rWiVWobae3/O31vFz0QAy8Oc6Bm1sgR… (844 chars)"
  }
}