Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHhw/OOEnzxXPE4w4+UgHfUfNYd+ftQoX/59IcVR1TaZnWFN8jZ1EteEM4Z… (844 chars)"
  }
}