{
  "manageEntity": {
    "action": "Update",
    "entityId": "842043513",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraa42pd4cuabp5stcrdvoprroaqmdwcdbspwmtptjey3ujjdycin7q\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":2143224101},{\"type\":\"playlist\",\"playlist_id\":1746798270},{\"type\":\"playlist\",\"playlist_id\":762146309}]}}}",
    "nonce": "0xadbc6f1f16bfe8bed4a2353fb24a37a1a5de0d2b8880135ea6866db7b6af43c4",
    "signature": "0xd665dcb41e1208c508c19c4e9fa5e4ca13ccfc2364b3f63798b69c0087593962222fc7272bf9d25ca65003e942e6a675d19d57b755890feb8f38314ce5f13c8d1c",
    "signer": "0xcCAe7e3D3B788aec9A4C39797101F323f7E87E55",
    "userId": "842043513"
  }
}