{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "775959",
    "entityType": "User",
    "nonce": "0x13a11aa7d30beb74e685ad4dc8d38029d81c2e6c7416b35c204a0a4871454e59",
    "signature": "0xbb209868e5152e96cf882921d926fdc0f1b337f40b3771a860602b7eb79fb48509e301841d99233c7adf698d41c5de7068b842e16a1a045a6eef13ecfa34bcbb1c",
    "signer": "0xC965eCf215DC75172bD11e8E1dbE76EDd838886e",
    "userId": "260849"
  }
}