{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc41edf0071e377b87bb663be4d5ceb61226d671874c6881318ac5dcf7390ede8",
    "signature": "0x2b74517d43db8cc68f56af5568a8a8816f116205292a3a55eb59882b4e659df80eecd2c823d352d2dabb6cbd7f7822fdf7c21e643b29c8760c49e2f246d9b9f51c",
    "signer": "0xF1DB1d78531A8Dda09eCcF66cDDF8494411D3e5e",
    "userId": "680469018"
  }
}