{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x4f142abb0912900b67e71b801b7fb59f68ca9acc03f26df26f0617f94005bff3",
    "signature": "0xc57cd458d93b9a9a1b20bf8facbfe0ea2810f49d34cf0085fb8cd626b92adb7f2ecc39d7eebd42ec0862faec29eb8c63fdafa84e018879bf421e39c177be29591b",
    "signer": "0xFB1D43C768E2C6359F2e1c154f6C5f9187F343e7",
    "userId": "166447128"
  }
}