Update collection private link

{
  "type": "object",
  "properties": {
    "expires_date": {
      "type": "string",
      "description": "Date when this private link should expire - optional. By default private links expire in 365 days."
    },
    "read_only": {
      "type": "boolean",
      "description": "Optional, default true. Set to false to give private link users editing rights for this collection."
    }
  }
}