{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2f50ed7a4a1743bf6fbd713c28e1e37df752b3129f1d887418afb940d6cc1831",
    "signature": "0x35cde2767b20a9e8eceff69b30f069af696833160465f6111a65e8ccf37c68ac295f2d4ace705b42d4d27ca8b712d69d424b40961de756e94eda3d28cc9d9e071c",
    "signer": "0x7d913954B22817498Cb46dC26BC53D515Ca78799",
    "userId": "577245650"
  }
}