{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x2b8715841747a4aa6f0552e06aa989ca8e03e1d6d575002c29fbcbe5428a6ce8",
    "signature": "0xb8bea65b18a8ce8f8cbe078deb86a4c4232f46ad0ef8931e9f76033ef76314db52d0e606a3697923e31c1fcaf920d6c958f1d4925b2b2b69a895c6b82704c9931b",
    "signer": "0x6268f3F36E0fe8D3E139bC6d32d7539887721848",
    "userId": "418312750"
  }
}