{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "12730129",
    "entityType": "User",
    "nonce": "0xc486324f956e7907bac202adf675feafd4bd35adaacf43ca6470a3d62e6e944b",
    "signature": "0x1784cab4fe8d25b224a8f883ace7f4161682c728aeb7b526da11dca3b76a9e22291cb92e47cfbfccc94970bc727a8d152d3f0bbb72f1388073cb3a89bd2dc14f1c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}