{
  "manageEntity": {
    "action": "Update",
    "entityId": "83259808",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xcb0d6bdc59ead0402fdd5250405133c949893289ec13060c8210a84db380ff89",
    "signature": "0xfcdb10ae9a325e9fbdea6c14c895aeb273781f26c898d2370b1bf05dc033288f2f71dd117d3a6dbc4cf98275e4c95f1c14e0e76d72b83496163bbbd3e0826f921c",
    "signer": "0x203D63822a158fD30F14dc7c83cAC4Fe686d6478",
    "userId": "83259808"
  }
}