{
  "manageEntity": {
    "action": "Update",
    "entityId": "133937",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierar3dmo6aguxayyvrnjtccfaxbq2of6nt7pearcgdqjzbyws6ecg3a\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":526915972},{\"type\":\"playlist\",\"playlist_id\":48806},{\"type\":\"playlist\",\"playlist_id\":48808},{\"type\":\"playlist\",\"playlist_id\":54346},{\"type\":\"playlist\",\"playlist_id\":43451},{\"type\":\"playlist\",\"playlist_id\":49795},{\"type\":\"playlist\",\"playlist_id\":54009},{\"type\":\"playlist\",\"playlist_id\":56060},{\"type\":\"playlist\",\"playlist_id\":533551898},{\"type\":\"playlist\",\"playlist_id\":1265482069}]}}}",
    "nonce": "0xd4cb0396898bc83af663c5e3310c48ffee97b0ccecbe4d94b57e49939306926d",
    "signature": "0x30f35aca2be2aeb9ba55fdb74de136acaeabc192a0943a3260aa5b7f9684478d5c87da5e8acbc31156a0a991777bfc04e4d75c78cc8e0a6598965a363cc7e6811c",
    "signer": "0x1ffc036ED61ac5d7de503819964160272fD4e2F2",
    "userId": "133937"
  }
}