Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHBrpOG4Fl/Vpm+GQQV1Wn/wdcxkgL9lgCzPbo/vdTV8w0WL0pNGTsB5HhQ… (844 chars)"
  }
}