{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "731052685",
    "entityType": "User",
    "nonce": "0x248b6f7bf1fe8c951cbdf91f5a0cf366210739dd3221c977c736441d4bf4c8b5",
    "signature": "0xdbd3bbb3cbac3a42c8dabc4a418b03c8793f5242790fb66e76da6681d8fc024443346dbd03088536181b94e92c7405ce17d877109c4d4095fe52562e6614a6f21b",
    "signer": "0x1ABf6DD41fe1E6b1C2d3A69859a25C92caa31b32",
    "userId": "17689"
  }
}