{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "398277387",
    "entityType": "User",
    "nonce": "0xa05a63891fb98e796eb013c92d4a514c296ea97d4c9475b66085a467833ed950",
    "signature": "0x2f5dd9ef89d76d5f84557641a35421a0fc9b4b2ec21d1628aa1ac76c6cfcafa45eab8a5636933fb342a73c6516d5d1187699599ae08e545ba565ba9427f887651c",
    "signer": "0x3CE307cb27B2Fc2b03Eae311050CA4e8C34Fa57d",
    "userId": "50936"
  }
}