{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x879cce11a7fe4b5c93d8ff283f54d04728f82616ddb6991242874b73a8afe985",
    "signature": "0x998c968ec9f84fd602a0f1f726fbfca1bf1fa5e25c23f21d938d1cf48683d7355dafb8f1a011a36b140f4e94b1510735b0b515caa4397bd783466af00ea74c4c1c",
    "signer": "0x5Bc05b706D3864d34607f61EB1cb128EEf4453b8",
    "userId": "673773101"
  }
}