{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77736",
    "entityType": "User",
    "nonce": "0xc3e0f60d9f8b75fe730ca678bdbe7c43b9dd02544dd9c56b0ccc4a73374f75d6",
    "signature": "0x1a247b17affef4536b15674fde34a73451f10ed6fa0eae5f4a13ae769d0d86974b84d1765bd82ccdbfbd2db76ca7772623638f8d3dadc99fa740bd804e89e67e1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}