Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwByTAw/ECLu8f9oTA7GD3pi8BfMdWI6OQlrdU1ZQHLe6lvn7n6Vx3dUoYBn… (844 chars)"
  }
}