{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "304837385",
    "entityType": "User",
    "nonce": "0x711d9d06b6aac84662b5184983551ef82f8d5036a9f642c73cc7e250705d5bcc",
    "signature": "0x0e3a6eb85692c72f0a13f934d756a7413f4c0a735198d33bb4133bef22189ce757b26b15ea9b43991b117e2f945c74dca2922bba8cc4bdb5bbcf57ebf67f70211b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}