{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "352705",
    "entityType": "User",
    "nonce": "0x3c95967bfadd7903d2e1adeeb42aec4d2f703239b7c967f93b3434b6c9a7ee26",
    "signature": "0x70bd9f2408edf7c89e48f9bfa00d8d7eb6c965225119ca0cebfc6997ec7609153cebb8bbf3fb59cef8d3c8efbdb78f35a5fa7781a793a3fc4388db3e97a4dddd1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}