{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190942",
    "entityType": "User",
    "nonce": "0x171bf9cbdac3fb7af35ddd2918f1f8fc6b36365a6e160d11f239a6d02396a554",
    "signature": "0x200bb07786bff814c8d48231b077ed16955aea1b992a6a195093553b8d840a322a4c22633cb0379d9322a019585447978593d7ebce150b116561753d5d5c66cc1b",
    "signer": "0xa4A8a4853051b18e0f0f777693Ce34CF4bCe9385",
    "userId": "634886384"
  }
}