{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x92d5d6ad881c4a5225c2e290bcf823e9d984a407e5203a146bce2a4c02851822",
    "signature": "0x2c738abbe397b2e1a109427634596f9ac3bff03ac5806d6c0efbf76067a32e4a207e22bc790192d39ebf598b921445d7281398b41593bcd38a59c9123a548dfb1c",
    "signer": "0x345034D12D730df104231b5c977dA6aab21bA946",
    "userId": "712464629"
  }
}