{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xa45becc671bc46d22c557741c357faae855118ce7c9d080deebd017722e4c935",
    "signature": "0x20555b2f54185cf604c0935d25aeecb6b8616cf03bdec7be2264caf6766541fd4d7f39aa5a81b43ef5199c56e87fab6122093f3482f8ab9399fd0095a7b847fb1c",
    "signer": "0x6164d22C5753c6E9f1ec157dDef5A3C606E2f10D",
    "userId": "534038283"
  }
}