{
  "manageEntity": {
    "action": "Update",
    "entityId": "623898319",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xa23bca451b4ca207aa97138de047c43b8ceecbd09d4c0fb626ac2935336df2db",
    "signature": "0x2e8ed9f4858c605949007f751db3ee6e6910f4c55a55d9912d257788b628466b4702cd09939075fc230457da24e4ef513a2dba85493eaf5cd4450831f015ba511b",
    "signer": "0xb483ED183e7fa8d24DA348Fd617B6e3467ee2A9e",
    "userId": "623898319"
  }
}