{
  "manageEntity": {
    "action": "Update",
    "entityId": "980020068",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x98c7574a282aba218df7dc95fb51af86b248bce91d90350f79fc333cb6c8ab14",
    "signature": "0xadc5702655aa358fc22cc13fbadc2973349a44d07b17183c850a1b1c9dec0f422970d93b9db636ef4b745fd383b1ffeb82972b1e323e69752f8b57c6a7df67491c",
    "signer": "0xe8891C37b2d4E4Dc9cdEbEF9160b23a8B0900a90",
    "userId": "980020068"
  }
}