{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x370a3fdba3ec167b6ca248a7ee710a28db734eb8ec77b2a4335de784ed88103b",
    "signature": "0xe0a9cf36231d74dd5e8c7d7f20e8f673063f14ca4a9b8e621ed06ea44f7194305c52e344e47bb968e18188ce9191a1f43c8b75e783573673a661c4257a14dbcf1c",
    "signer": "0x6164d22C5753c6E9f1ec157dDef5A3C606E2f10D",
    "userId": "534038283"
  }
}