{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "305192",
    "entityType": "User",
    "nonce": "0xda00ad69f3ccb349ae588f896ad59ae7da95d9da06e67a8f8a13eb503b03d451",
    "signature": "0xbf9103ce54860aca10b24f9962287deefd568567f81f3900396b823e8d63ace17b20f785d515ee8ca60f54c9be23e4f1d3a7ea3b9d5365d52a8707db64d1945b1b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}