{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51978829",
    "entityType": "User",
    "nonce": "0x47a68bebe10fe63a71c6a892421c0c7df909c6693b52f513c4dc49adf8bb8c08",
    "signature": "0x523297670a03f17996e5b9fb6be0b961bb429d84a37ac2baf145b4d4015eb9a31d6847fd676fc65af303156a7af2fc58181f6de073450ab1d1862ac6ed3a369f1c",
    "signer": "0x63F3746711A3a89af8D7BD7D6bD8cD5f59c22673",
    "userId": "511280302"
  }
}