{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "218853",
    "entityType": "User",
    "nonce": "0x39603c64affaa91c1104c8f449263aca46573b66a49abf45291a4187afc4e38c",
    "signature": "0xbdab5ed0f999fd870f98c5d508f7ef150377225156bbe74566285bb5375409b279e231a549922c1497976d978c2745e4ce2f0a6efffe99fbe772ba9e0a7948b41b",
    "signer": "0x9837C03EAdfA74365Cdf4e01e6840D356104bFab",
    "userId": "911622928"
  }
}