Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwBFm/Hr5BG+vyhWpet0e1bnxCJY4QCTTfCUBHX5vIC07Ww9hzKAt6VRK5qT… (844 chars)"
  }
}