{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "7716",
    "entityType": "User",
    "nonce": "0x2272202faa69ef094fb4852a7847550cf74e4ca117336074c57c645fda1f69c4",
    "signature": "0x22ea834ffae5d65f19d85983228644df913b81e4b60f3c4e1ad5b61ea2f43f3721a3e074b45fd8ac923441fc4c2e02bc6e99581a7564b605cdbcf08714bdcc5e1b",
    "signer": "0x3256Bd2D0B1984E7df4FA525017aD9bA48470760",
    "userId": "51"
  }
}