{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "831117417",
    "entityType": "User",
    "nonce": "0xa72431d0e8029335605e7f59fb4679195614550003a4b2cc20becd88ba13599e",
    "signature": "0xdbad83694417543436c1bf70c09389182f618a81569b39f91864f6f68039076360d19b8f285c1613a9211ec542f5f352ec318602b9c1b30dcb3607ccb434c9b21c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}