{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1385998271",
    "entityType": "Event",
    "nonce": "0x09ec66ce76d3f96ba2ec72fd3cefaef6e94dcb2f827a8794c03ea9f16fb7cd4c",
    "signature": "0xac2a3e428733d0afce1f50ef451a2e5606d3db8b5ae0d415d4a8fe570d56a31d4e274e5317f3729ba36ae9cf90875fa1bc2b2980f07d890ad4a052b89aa53e7e1c",
    "signer": "0x488e8Cc0aa4A4A170544982D50B2616e42ca6c67",
    "userId": "386938284"
  }
}