Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwEVSZT55+KQAOF7R2EyPqmFB0CqS9h35cGHu5OMPDWJBEpx1mp9AC8KTZPS… (844 chars)"
  }
}