const EventChain = require('lto-api').EventChain;
const Event = require('lto-api').Event;
"$schema": "http://specs.livecontracts.io/01-draft/12-comment/schema.json#",
"$schema": "http://specs.livecontracts.io/01-draft/02-identity/schema.json#",
"id": "1bb5a451-d496-42b9-97c3-e57404d2984f"
"content_media_type": "text/plain",
"content": "Hello world!"
const chain = new EventChain('JEKNVnkbo3jqSHT8tfiAKK4tQTFK7jbx8t18wEEnygya');
chain.addEvent(new Event(body).signWith(account));