{
  "manageEntity": {
    "action": "Update",
    "entityId": "163826447",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x3ee0ca6e91fb837f7e3e364657276a4c0446728766bd923586cffa433d1f81cb",
    "signature": "0xa16f402a49942589106dc360ff8286d9c39db4751d64d3f0222d2547bde37a531a66002424e726da9edc4bb2008803489333cab72fc97eae3ec1313dee55eabf1b",
    "signer": "0x109fE98a9688F2ca8E1b3174Aa26f06bC64D2a80",
    "userId": "163826447"
  }
}