{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "256614453",
    "entityType": "User",
    "nonce": "0x6f8869a47aeadbd91f2271546028c841759b266007586a063a9055fdecb3260d",
    "signature": "0x37021fbbf6ea21f11a4714316d1965466e0a02e7e2fc7ac61f79c1e661eaa0cf5c5caf3a2f9c017e26ae04c8f9cf2f84424697d36fcd842f0c995e6b306554e61b",
    "signer": "0xC35123bF05ca0B3A7B333c53E47bcd9f9DA864d4",
    "userId": "33896318"
  }
}