{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "67517",
    "entityType": "User",
    "nonce": "0x3caae770c2e16eaf8a2d4e7141e6f870d2389e1805e1e200418cbed6a8b42a53",
    "signature": "0x070c0981676b2fb244a45f760e9aa9bce45d4987e1b9b8e2f33ffd959257302152dd6f22bd17f8fbf4ab8fbb8d9a4bdc9979533429d1aa0e43a09b01335e33b61c",
    "signer": "0xfEf199273dc1B7112aA0D32cc0DbF797aC6EAfE5",
    "userId": "198179849"
  }
}