{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "8471",
    "entityType": "User",
    "nonce": "0x7c988c94c622bc026e5dac999c27c9b6b49e8d321ce75e42b74d176fbe7852e5",
    "signature": "0x25aafbb0792ebe4e6898b97bf85afde5e86d2ae6eb5328bdc0597e948783cb75143b12fbaa3a05798948ca214973cd83873450160664bbaaec3ea0762a897c021c",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}