Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwD5uWfj01eI88qmvYp73Ym+1+wIV5Hj3YpNZGw/XIynDFbTHSeuDKIRz59Z… (844 chars)"
  }
}