{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "286864952",
    "entityType": "User",
    "nonce": "0x939f82f609f96b093a4a433dca126e77bb48d02174a23ce1f01fc84f61f681e3",
    "signature": "0xc9239d13367ff70c22a9ee9dac12f96fbcd9cd621f1738524b3e964c4658567017f6584bb2840b42dfbe6de278e58e9b0f4f280dd0778ef8a68d2f4257a2edcb1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}