{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708035526",
    "entityType": "User",
    "nonce": "0x90e5c16e17abcbc58e9fccf60af6c8ef726f754147c9271d90a86617b2297949",
    "signature": "0xc5b4760160112e392b2206e5806a35535827851b273d865bc141af040bc6f5a82805db8d7fa612f41dbc5f8ec41fbc31385927b12a5745e851d8b7204a1e4b231b",
    "signer": "0x6d6397f74d01E51Fc0C654f5703B972e7CF26876",
    "userId": "237542932"
  }
}