{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x71e96991fe08c0c387225ecb62efc6d84e2beae8333b9655051d6cf90172b387",
    "signature": "0xe871b8db5930b63fabb7c7cd2637132b6d5d96cb1c4eddacec9fbc3f5b669d3c1489934ad9069ac8b020b9d7667497557dc550624c197d31058b367b8c9fcc031b",
    "signer": "0x6fCF27923aE49B784D4ddADC3b0295b49e8403f3",
    "userId": "503591447"
  }
}