{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "16449",
    "entityType": "User",
    "nonce": "0x064c0d6d267b91fec8b0f8e952455f24ad959d24955130cb0ac024469e1c36e0",
    "signature": "0xd6793c0faaf1accc078856e1ec6667b818fcea9f5f3e415273951fade8d3b790313d9f2de7457b7c0a120ed7b5b8c1ae07bfe3086c4ab76e0eed7d84e0b7d23a1b",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}