{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "823788083",
    "entityType": "User",
    "nonce": "0x7acd15b95e9a6c683003335c21c12486ddb36d7ec3854da40622e629e33fad84",
    "signature": "0x0c9ed930829a3ffa3c4220e30216a1e8356412f7423fa03f49ed9f44a3b2bf775c71a34f831d41aad7ba462f9a4b62d354f58efbcaef47068447bfb5bbc5e1fd1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}