{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x494c47e4f342fb9808f67efda3c2f70016054d9abb17495ced73afb28c1e3107",
    "signature": "0x12784f378f93902b6f1d8c651ff12f44988c87268a4ce56ffbd1198951b2cf292a37581f337b7b9dac4ee689d2eb4f416d9706866f441c8f44af492de297cfbf1c",
    "signer": "0x7b399BCFDc17B336685A59b06a03cA6B22F6B493",
    "userId": "71392784"
  }
}