{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "74352",
    "entityType": "User",
    "nonce": "0x46e779b7269d278b64e3dc8ad9f7f1d423e511c675511cbd5f03b9f5be2b21bf",
    "signature": "0x8cf3a790860fc98f71a4d8ecc905f93c4ab7dd07e7e5915a0490627d6e0ad68111ee6eb8991ac65eae0cfb239d24d1d9345233841eae799e475e0be0dc5441f41b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}