Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwH4l2Zk+5gvPw8CRuYqQwna93vQD4LjZgxCbmDJ5Ye+4i+ZNG3SS4laYxxF… (844 chars)"
  }
}