{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "104848",
    "entityType": "User",
    "nonce": "0x1e6c6c951cecbbaeb70c6cf8e8ca4ad85f2da61c8ad36f79e947353c0db8c6b2",
    "signature": "0x7653e7e1fc0ad2aa57ffd8b189d11170dd58c149db196f7dd04cc8a4eaaf6f5621707c783932f63ab2dc20e6b8fe8b766d584ec87a679719d6d244fef2c7003e1c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}