{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "99454",
    "entityType": "User",
    "nonce": "0x5fcdc3be2bafe180e6f79a4de7172a17d8c5f5532e4265dda4a5587c41950661",
    "signature": "0x380269ae6cb08e9e91b31f7cc72fca0efdb08239f5154c0915057d9dc97d842d014aeef52252f3d96bdcf5b797d0b9bbde87c160f6a667194bc93f7982d6ce2b1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}