{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "447853505",
    "entityType": "User",
    "nonce": "0xf7436e98ec33b357d1e2f72201fefbcc45e6fbaec1d5cc00ad8879da53f9f0a2",
    "signature": "0x8c6f36c9cbb29ee5a24a696b662ba385979f6cca58f9fb46dcad9989dade4300418704b65d4183211dcb54c951f1272daf82d46b3c2c64d2160d8364caf8ee001b",
    "signer": "0x585cDabc10Cc73f4B07A5D7f9E85F61770D9E38A",
    "userId": "482885822"
  }
}