{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "3856",
    "entityType": "User",
    "nonce": "0x0783631a21a5dd983a0dff03be60f01484862a1ad9a08eadb104f5a60604ae59",
    "signature": "0xa997d4764f08e1012e5b67897980d914f3ab54eb6dea843129c886dfc2422c70557dec3be2fd33a5c2b171e84a206c3d54c371657c25ec1d16113cb51ebe68741c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}