Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwDr/vGVg+hgZanPZ8cAX5vCXVvC/m9y4lSN1lh2ncXif2UL1cVo2QS3l5Vd… (844 chars)"
  }
}