step.text

{
  "level": "info",
  "timestamp": "2022-06-15T14:15:30.150Z",
  "kind": "step.text",
  "message": {
    "componentName": "text",
    "stepID": "628469f0effe73d544505715",
    "plainContent": "Hello, world!",
    "richContent": {
      "id": "jg8h3bv3",
      "content": [
        {
          "children": [
            {
              "text": "Hello",
              "italic": true
            },
            {
              "text": ", "
            },
            {
              "text": "world",
              "fontWeight": "700"
            },
            {
              "text": "!"
            }
          ]
        }
      ]
    }
  }
}