{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "592205126",
    "entityType": "User",
    "nonce": "0xa6c8963fa6b1d57f575296a4efa3d027442438bf38968a919c4186b947e68e44",
    "signature": "0xa369c6f61ad02a1b9ccf5bbb46d2e0875c7ab75558f946a89334c7389037a7e17dcf03c3be8a752b514012ddcf3f1bf24d42013e3b31ac4a0c4ada019b3e869c1c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}