Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwB+vzd7c5Gj/4ikeoXuvXeC+mRy1Wjpf4qQC64b/BL3R0kHk/vV5fk1YshO… (844 chars)"
  }
}