{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "888232211",
    "entityType": "User",
    "nonce": "0xcd6303048c6b0debd19be99be21f2025e433f52a0bf342a57d6c212d6a9ed329",
    "signature": "0xb80b70d5a50139f48496f8a1f7c38d8f2cb7b602cc94d51c75ad4a3b72e2008a74303a260324a8262da93c72466883615190840f007f0b8558fbd0e3f563a9161c",
    "signer": "0xDfAC0702040EaBd2d42e773014D4b014C0747D9c",
    "userId": "707937"
  }
}