{
  "$schema": "https://developer.microsoft.com/json-schemas/sp/v2/column-formatting.schema.json",
  "elmType": "div",
  "txtContent": "=join(@currentField.title, ', ')",
  "attributes": {
    "class": "=if(indexOf(join(@currentField.email,';'), @me) != -1, 'ms-fontColor-themePrimary ms-fontWeight-semibold', '')"
  }
}