{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "249375",
    "entityType": "User",
    "nonce": "0xe886d18a15bc2984c039e7770aa95a6077560174d6adb04d79fd9971f77131e9",
    "signature": "0xfb65f0567c0ab2366a2e20a1d97c0fb863c21a65ac2cbdeafa7c1fe9351140b84087182ca831c75797b0cefda756a905154ab1c69e4ac154ecbb8674491b40ac1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}