{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "157851",
    "entityType": "User",
    "nonce": "0x3d434fff7a79e315fbb21711cb1d707563ddc626772e896b7f02b46342012ded",
    "signature": "0x73b6c72378165795b037e0afbc33d252b9b25602dcd9158435f72a63bc1e98894bf89a045eeaaa32675476570a6da05e63cb81c8aae3e02b0c96ad26a21eccc21c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}