{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "298795",
    "entityType": "User",
    "nonce": "0xd2bd4ff3c800814ea747f9684a8b276945953dfe07936b6e53bfad849362856b",
    "signature": "0x6526b6266ae85e3ab6c982b1ac4d634b63505b8ef28874126a6f081af9ea686837d2090f2fd3fce390a43743335da3850ea6c53c91e28ea50aa8f79cb06372d21b",
    "signer": "0xE7A4a8f1d081B44C96Ed68610B6c3016ce8cD6E0",
    "userId": "464427506"
  }
}