{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18168",
    "entityType": "User",
    "nonce": "0x02dd848668d1292349bc65852a62e019b224cb775d038d5e6f3e5efe26606abf",
    "signature": "0x14163f6a55902ad2cf0997ed87deb13c51b8659e5c26e40b728252807a7172eb55d74c6cd1e0327ff812c9cc929ea37e61f731d89c9f0a531000d147867157021c",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}