{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190041",
    "entityType": "User",
    "nonce": "0x872f198fd26cb97162f91ca8eec909121d702cdddb0626a7a98e4971818e9532",
    "signature": "0xb93404f2340056bd4cb37ab4ae1fd6a0b908d6b3bac1e49661813d8fc1dcf31a17c992f02b377bc78a964c025ed12bfddb70805be615153ac467a19fffd7841b1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}