{
  "manageEntity": {
    "action": "Update",
    "entityId": "313045689",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieralu5p6ksm3uclzth2riq4wb6uukgsvem23ptkyjdghwn44xayoheq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":605796989},{\"type\":\"playlist\",\"playlist_id\":1305376618},{\"type\":\"playlist\",\"playlist_id\":1391453427},{\"type\":\"playlist\",\"playlist_id\":238163701}]}}}",
    "nonce": "0x4db741c74f297f3a8ede03a71064efb90a4087be6b4e362030e5d901cda73174",
    "signature": "0xfe5b5b9e530b071e7a6861438c96bdf72c3a69c1177e0ba4c0291e7e39e69b47366ef2e4d504afc9a6000a805250a036e4bf58354f54ca98a7c94b0854f14ebb1c",
    "signer": "0x7495ffcEA4B233ca42224EDe45fA94bc245920C2",
    "userId": "313045689"
  }
}