Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHFGh6xPQvD+6gTFqhYtRzR/vnBvFW5w4OozA+kL3HT3RLhb/qfkJIg2Joi… (844 chars)"
  }
}