{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "415050011",
    "entityType": "User",
    "nonce": "0x5efe10a96c9373b42accfc7c1bfc53870ec238515447a62160b85c4299bf922c",
    "signature": "0x712c6289ae41630c72ead3fc2e72f74c55e5b0db44becadce59b25633f979f24004b9b440313e0dffd69850baf0e29c604983ba5ae3946cb16d4aa390840c5ff1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}