{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "910778788",
    "entityType": "User",
    "nonce": "0xfa1671a566eb1cb825399c9d7040f475a21acf9a27d157b38edf51ebb4db7de0",
    "signature": "0x4f8a10ab0455299a0095ed53349961db823f9fe548adc2a36bdb01fcf5a4167b64a457fc7195c779b8a2a08dab4d2d10f147bd7d666c2593ad4a8363c28092141c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}