{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xcb92a8674433ec42d1ab7128c6982290c23e639c331efe35f9f035de5e4e3e86",
    "signature": "0x1d5c5a178c304bb3156ce33ed8f6adb3349299c59e97a43eaff02cb282e386a44f2114d5140ef0385fc4784d658f567b1f9feff90eb01a749195a491242ae5d51b",
    "signer": "0x9d4b9d6c08f13bdD52f5B6Cb488a70DC2819e2de",
    "userId": "540238713"
  }
}