{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xce54c3c8cb2cdf11ce3b089e92af68ec9fc603be9efa2b0c9a39958e302e050a",
    "signature": "0x9d293fe495a6217be157ccd851f4789f800ff33e9373cf0096632966c7921736375d7b013d7d39283df394eb3d7c6cdd9fea7cce5a27a94445b594ab710f08491b",
    "signer": "0xCFa936e48986529856De5845C272EDb89839b5d5",
    "userId": "900195610"
  }
}