Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwE8W3i0XVGMv2/kcvqadBvkxqnZC+errxIaUsrQ+7W79H5X6NvZhDZ3IXYQ… (844 chars)"
  }
}