{
  "manageEntity": {
    "action": "Update",
    "entityId": "421799379",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera6hy4y66s64qb2tw674oywofjxbo4iv5vfwkvipszvyawq7crmjgq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1095487809}]}}}",
    "nonce": "0x71ee41beb787caf573d2a045a9bea0a376723281174d393ec11d967ef31e5927",
    "signature": "0x671d39b622e564e507411d2a94ca2da93571661b61304fc0c28414a233b76ca12cea7f1d0252a69ed6e2af06e1f41530b513ac85dd6c7f032eae7a289470044d1c",
    "signer": "0x595F85ffA9f107Fd7A88613A8621C206a4a30947",
    "userId": "421799379"
  }
}