{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "485987672",
    "entityType": "User",
    "nonce": "0xb21a511e06c16f37abd593a6c061bdeb9c434b3365cb4755c746961c54bd0cec",
    "signature": "0x16250badf33a34384a22d31b04a04efb6400de3bc9a4c329f2772061cc0cef625ff5d33551985d559659ac6a4040dd0222f1d402857a72582ccc987a3ce9cc1e1b",
    "signer": "0xa1F606584fdE30bB7d4BE2EbeC98A5F95E4559f4",
    "userId": "786922215"
  }
}