Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHp3VIV0gf3nb0PUzsgt37ZBqjONLMDdv2jQ2KZqDwCyjsEDo/C/j2+C+1/… (844 chars)"
  }
}