{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "987974477",
    "entityType": "User",
    "nonce": "0x1df0b98db363953c1d758af732ddc19fb82912ad29e3fccc23415085adb2205b",
    "signature": "0xbc57bed6d6eebe7b8cb5124cfce01c4bf066ea7f4b2f24cef8614264838ab9ff22a148612599f0d036484558d8974e61d8a14275a78db8c5faec8b53f48f80321c",
    "signer": "0xE7A4a8f1d081B44C96Ed68610B6c3016ce8cD6E0",
    "userId": "464427506"
  }
}