Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwGPUZUIa4EJH5uSdaiO5p9eWjqPqkJy1AFanlABrpKQnWHY/kOKzk4DzRc6… (844 chars)"
  }
}