{
  "manageEntity": {
    "action": "Update",
    "entityId": "364824223",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieradr6nfuesctnmjugi7pn6pt7eorgqyld6a2jbbdwk4d2dzjrmfcnq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":507951590},{\"type\":\"playlist\",\"playlist_id\":1556804109}]}}}",
    "nonce": "0x9b5c41de8aaaebe9f8c6a36cc6c601b60a050c64393740b4c33e6fc8bfd811ae",
    "signature": "0x0531c3130352825046450008104ccdd5ca7fdfe31632fdb369db5bb18716a1cd38368b819f76af7855b50d7065ddd807540d5af1bb9fbddef60add75102de89e1b",
    "signer": "0x73D0f95f148C665c6fb739d5f2eA7Aa713823CcC",
    "userId": "364824223"
  }
}