Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwFOy/+Fk3CCY/R1hvCxR45rNhVfJvlpTIdx3Wd/TgMuxVHJXzk2lOmW8Xs4… (844 chars)"
  }
}