Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwE7DwTmM/VRl2P7uxis1D1ia3gW8UR+l6LuO52hNuDpc17O+LDI7tV7Xr1d… (844 chars)"
  }
}