{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "489142812",
    "entityType": "User",
    "nonce": "0x31be9a4a60f46b9c761d2ed17a02b498f4e3411b9daf136655718a21f458601c",
    "signature": "0x189177a6c79996d49837ceb79e95340e57ef3573683c40f8a2d11ec163902e82706839666170fbe0e63dc5ea754ee99a5c847392ff5ac3b7201aece1554a27901c",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}