Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwGq8mHPPE4Kj/TT7fMGa8WLck+vGvxs+pXmN5J4ryJctG6ueghhKbBZBfJy… (844 chars)"
  }
}