{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x9bec92d523a9e6a5b080468d175e3ca13aecd46acb9baf6abdca1eff4687c4ae",
    "signature": "0x1d54f4308899ed22108cf6669c0ca7e16ee858e5c33a7cd81dde9444610404cf42cfa2bb2c7bb8e7edd05aeff0269750c6490452389af9ce6857054174b37b151c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}