Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwGJFSVHHUeVscXPFxzkrjgADC9gWI9bJFvoHugp5UuV3CD6jGv1RfL/g+Xn… (844 chars)"
  }
}