{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "930634116",
    "entityType": "User",
    "nonce": "0x5ddb446a223369077bcbfa4e29c2ef27529fe67bd22f6a7e197ac4eb135fad3e",
    "signature": "0x31bf9fbdf71d17e823f5325db308760ae8848f2b3e1f9db51f490e9f9e5b79987ce9b95b1831edf9cdbc14ac1e94a6be1512fb61c4c46ce802360a3ae5616ab91b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}