Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwBJE6rOp/ZW5Xg5qx8BXL/kZrzXWtZwajoy1F2uHi0MzBcv4Bw+AZ7uf2Hr… (844 chars)"
  }
}