{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "367647512",
    "entityType": "User",
    "nonce": "0x1d73f86aa75a31d137db11243adc404e3b363911624c05638a92bbc21c95d356",
    "signature": "0x73a87948984eceb5e0dfead6d18b537951a8f6b019658c73847ed685afebf56a19c8d197699d45a6725c1eebc90152cbf6bf3a21faaf7fd7ee69903e331e4a541c",
    "signer": "0xa4A8a4853051b18e0f0f777693Ce34CF4bCe9385",
    "userId": "634886384"
  }
}