{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1438540",
    "entityType": "User",
    "nonce": "0x035767c0aee7fd317b355ad7c37cbf56d4cd9665a7017d2cf1a35dda3c56fc5b",
    "signature": "0xb1c932d90e8958b90e855fded77fc75fab6622345cbd8e3bb2e7126a1dae30462e1eeb7d3fce67bb7779ea09813e6c83bc157e0abfb30c3fbc58aa14759db6721c",
    "signer": "0x52F331C086a11941E738a6C86d9F127E934dDEB1",
    "userId": "281470566"
  }
}