joystream/content-directory-schemas/inputs/schemas/UserDefinedLicenseSchema.json

{
  "className": "UserDefinedLicense",
  "newProperties": [
    {
      "name": "content",
      "description": "Custom license content",
      "required": true,
      "property_type": {
        "Single": { "Text": 4096 }
      }
    }
  ]
}