{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "280440301",
    "entityType": "User",
    "nonce": "0xb632e1027e044812f5467f95053a4d061fe93ff29488c0afbb12b2a0312d141d",
    "signature": "0xa0d6218fe29ddbc1d6fd9686243ac61eea45d42d749c0c4ed9b2faaa494ab62b7f701506d88df67cc689eaa4e46218a2b36a868e9185eb780a6135296c4025b91b",
    "signer": "0xb2B3D446C5A606ee5B3e74e77EE3c96634De4a27",
    "userId": "399675354"
  }
}