{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "305838",
    "entityType": "User",
    "nonce": "0xa491814466734e0482076a32c938f909a7c2743f3a1c0c26c51caae91bd44319",
    "signature": "0xe33e1737556c7526d90919ced233588d85d45dc4b11ec39a9559683db90ded80076fb0f8ea596ba6bdc201294ba05332edcb37e6dd5c93327fe76b18eee2f03b1b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}