{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "776427",
    "entityType": "User",
    "nonce": "0x8d2d918a329561190bf1a4bb7225aa06738c1f0c00ac400bc3686ae39d04439b",
    "signature": "0x08aff18eb7addf8c9ae213d394983626e779e6a9c7fe5ba281bff06ead68efa5471835a3f8addd1d6207e7c69daa98f4585502d07898df61e7ba8dea6aa92f851b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}