Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwADFsZvkSHVFfA/IUbj8vbwkiQFEY7U+kCr13s6jjYZ6Qk2i0GXlWiHF6tr… (844 chars)"
  }
}