{
  "type": "doc",
  "content": [
    {
      "type": "paragraph",
      "content": [
        { "type": "text", "text": "Some " },
        {
          "type": "text",
          "marks": [{ "type": "textStyle", "attrs": { "color": "#ff0000" } }],
          "text": "red colored"
        },
        { "type": "text", "text": " text." }
      ]
    },
    {
      "type": "paragraph",
      "content": [
        { "type": "text", "text": "Ping " },
        {
          "type": "mention",
          "attrs": {
            "id": "m-1",
            "label": "Alice",
            "entityType": "user",
            "entityId": "u-1",
            "slugId": "s-1",
            "creatorId": "c-1"
          }
        },
        { "type": "text", "text": " please." }
      ]
    }
  ]
}