{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "808512351",
    "entityType": "User",
    "nonce": "0x751ea0cfdabce51e841cf69011aea10e9ffe6f7f9d9e9b4bf98dc5cc2df7cc56",
    "signature": "0x37daafa4c80ab6dcf8a45315050cc088f986f1fac2800f52035425e6b705684007c9ec65bffb20560598197ed9449ab93eabca604a78fa44307d1b199813d5f51c",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}