Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwFKZMGLv3s8X0tAv6IH/Pxc5i+LxPBxORaIqvgAhW6GizFsuZD2+t8dSp4P… (844 chars)"
  }
}