{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "363458",
    "entityType": "User",
    "nonce": "0xbfd9cab4c19d85bd6ba5dc26aa8df9bb78b75f8b8b9ff72e16c3b740472d654a",
    "signature": "0xbdbf463c0e0aaec1b9d0ff8818a48aa64a4719170a8211dfc2fd4b0c2a3e2d4b1b05883cf3adc9b479b22eb507ea8aa1e18818f8cd7564fed5ce0293dbe2971a1b",
    "signer": "0xA27B00F57fC7B3E81c4d7C4919aCec97E1fCf667",
    "userId": "329513359"
  }
}