{
  "manageEntity": {
    "action": "Update",
    "entityId": "195031443",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x18e24209892f5588bde77c6e07850cbfb6401461adda9ac62ef08c346bbeaa21",
    "signature": "0x2388dc6216595bf841cb4c51d4082dfe0d3fbe81cd72fd28dd80fc47aa8a745f5ea8db7c0cd559742f789a5b8961147b05cfeab5c18840cb38bc750bbb992fea1b",
    "signer": "0x09BefBbd747B3CFe852CC911A1fa4EF5bB5Ebe8f",
    "userId": "195031443"
  }
}