{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5748",
    "entityType": "User",
    "nonce": "0xc666ed9e713f8276b8e10a153b25b01ad77888645e875e908ca6c00b7b7543ef",
    "signature": "0x581ca3e472daa961a6c46ff597c47b90743f9b3297374830ba3395004ee68762464b4f4dbe9f1aa8c376da3fdf794f9bdf80d424ea2fc37c4e6c66810e169d6f1c",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}