{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2244749bcedb0c45f23e3429251433af18dc4240d57e46521af9b2bb9be7994d",
    "signature": "0x886745279cb13a275c6204c1d96d28b9d584d50a0a2f5a293e50ba72f0c605ef42e164fbab3498141c1047b0c49a845516db4a36df17320eb1552e3fb52a2de31c",
    "signer": "0xAa41F58040c332bA099e607a94e779E0eaAd70a3",
    "userId": "256614453"
  }
}