Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwC62NHHz6q2VO5oPki7g41VNFHP/FRzVGoJlKnWzlBd9yZm8+IG0IzEGSPh… (844 chars)"
  }
}