{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "658437099",
    "entityType": "Event",
    "nonce": "0xabfbf32b7f08686158155b736c4a81c6c5807e9b1928247a1fcce123faa0635a",
    "signature": "0x6058d09611eb5832357b4e73e3dc5e6300d46f38b20b7b2e85932b8bf68e3dc961ccb81112fa1b9e90d31d3d2f47be355f857f601eaf32fa0321f728848e3aa11c",
    "signer": "0x7D273271690538cF855E5b3002A0dD8c154bB060",
    "userId": "1"
  }
}