{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xbe22294f9d8c791d6fc8d3d8d24aea04f70a504995862e97af0930f73157ec03",
    "signature": "0x18a90cc5ed5730cc9bcfade62dc4956670e8cf3774f509f07eed9e9020c5bcec236839de1e1339046bc43e0e8609bbd246a67ca192bb0a69ef0d234cd66772b81b",
    "signer": "0xc07b74C032BaF40aBD8cC380714c13c6a5654C18",
    "userId": "437394819"
  }
}