{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xa28ec73e269eee58531fcd12f13d27e3d43ec3ca89ca74a60a1bb9bee495ca88",
    "signature": "0x2aa4119dc3eec58f761efa12d4ef052ab360839d08f00db71329aade2821463c3ec1faaed1fc50275599847c7dd07e7a067f2d2b31a093d6cebee94a3814523f1c",
    "signer": "0xbb3b8C270080b0DAE42411345FCDc6a00369e247",
    "userId": "690093689"
  }
}