{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "43430",
    "entityType": "User",
    "nonce": "0x1e8b011e69f8d3c82f8fa693817825aeb44d772d4d1b762cad8aa0a2e5447560",
    "signature": "0x8ddf27e2eea7e37555cacb2734a8c402628d3b0b7aa88b85f00d0442fda50fb6010aa2c6d3da7219350a39361882c884ab9ecb198fca6a1fae1df05ccd6c90e91b",
    "signer": "0xfEf199273dc1B7112aA0D32cc0DbF797aC6EAfE5",
    "userId": "198179849"
  }
}