如何订阅 LinkedIn webhook 事件？

Question

我正在尝试使用订阅 LinkedIn 组织社会行动通知

https://api.linkedin.com/rest/eventSubscriptions/(developerApplication:urn:li:developerApplication:{developer application ID},user:urn:li:user:{member ID},entity:urn:li:organization:{organization ID},eventType:ORGANIZATION_SOCIAL_ACTION_NOTIFICATIONS)

api.

我已经通过了所有必要的字段。但是我收到以下错误。

{
    "status": 403,
    "serviceErrorCode": 100,
    "code": "ACCESS_DENIED",
    "message": "Field Value validation failed in RESOURCE_KEY: Data Processing Exception while processing fields [/key/user]"
}

如何解决这个问题？