{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xba7f7eb152195bc0ea85cb384007eb5ac47658ea6e341e65e793a77761e62363",
    "signature": "0xb8eada4d78a04cf756c2bad7f4e96227a76fd206989f93ad07d36b52ed6519c90c56f67dc36f432cbdfbab2dded23c5f6455202ecbbb5b50c22268fe71cdec311b",
    "signer": "0x41AeC2Aa38117fCAd7514D2E6c69FbB9fbfc2C20",
    "userId": "386827046"
  }
}