{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "471950218",
    "entityType": "User",
    "nonce": "0xea3f52239255d881481d7fa84bcccac7d2ba8f96c95aecadca3588e34345b69e",
    "signature": "0x0176bb7ddc3daebe939b4c7a628ebf42555257bdff44a98241fc5f5a37b4d6bb48025dc34139f17ff15c091d0171610da09d13417792f4956107b02aa556c7851b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}