{
  "manageEntity": {
    "action": "Update",
    "entityId": "163260",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierasfeokmw644ge5v47rhgtwhtlx5qy7bbxfhrrkszqjnaovjwcyguq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":122788},{\"type\":\"playlist\",\"playlist_id\":1720889418},{\"type\":\"playlist\",\"playlist_id\":1936117932},{\"type\":\"playlist\",\"playlist_id\":66758}]}}}",
    "nonce": "0x5b5dcbe63d1cf8af335182668d0a10bcd6eebb8130fdaf571e80b2c7daccb481",
    "signature": "0x5817d4578df015bd3e859fd253d244cd310bffd9666c70effae4256d12e613f216da233bca0caf5db343609a750bbfc8858ca216c931f18869a9646766d52e8e1b",
    "signer": "0x7e777EBa3114d70a87d94d8073a444911a00c100",
    "userId": "163260"
  }
}