{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x85cf09bbe7c7ff43195283a608b69d2daa441eb3c660c92967805e1007432fd1",
    "signature": "0x251ce3d114fe6b95991086e3cf3acfad9935e0f4dfd31163ee7246e54d20769c5be4fb14adc33cc7007352f3dd171d901c5a8fea6ad847b86b09add3763428421b",
    "signer": "0xEb133bF66214f7Ee19c7b8D17D6565367c7DA268",
    "userId": "3487185"
  }
}