{
  "manageEntity": {
    "action": "Update",
    "entityId": "909822926",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierarunisg5gskbg5lhsht5vdeljpnijgaykbnvuvaguslqwdre66twq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1126518777},{\"type\":\"playlist\",\"playlist_id\":118958},{\"type\":\"playlist\",\"playlist_id\":131807}]}}}",
    "nonce": "0x451027fb091dd6972deab3157400b7ebbd2ad7621ca5a819d54b91d69023321a",
    "signature": "0x9c9447a0d74a5d4cb1617b35a5d5113bc1726b410369f68253d28434ae480a5863c7c1b977187c52a4c9874d89e65072981635518b0191efdd39a7696792267d1b",
    "signer": "0x7315e02d352D97bee742C3B3D87F3277D05bA410",
    "userId": "909822926"
  }
}