{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "671644518",
    "entityType": "User",
    "nonce": "0x9312da1c80151dfbc1feeed168ba865039e0fb37a60732fb9d15239acd0f5911",
    "signature": "0xd4f1df29fb604d4b9db812d233a8387c090272f56a2050f7424b717abcc10d911dd5954c6f5a722793529145e331cc2ebdca3979ff50f5f4d80edb49d8429b251b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}