{
  "manageEntity": {
    "action": "Update",
    "entityId": "492531535",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierayvighzqb3c3urnmewidfrdbkl2jyyh5vk5f44ynizfskr3vchmla\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":767085494},{\"type\":\"playlist\",\"playlist_id\":1453952596},{\"type\":\"playlist\",\"playlist_id\":830210335},{\"type\":\"playlist\",\"playlist_id\":203791446},{\"type\":\"playlist\",\"playlist_id\":1454780733},{\"type\":\"playlist\",\"playlist_id\":609247990}]}}}",
    "nonce": "0xb6783fea0b966591561fcdd4a0d58de878c87675941112546e6a9773dadc1f05",
    "signature": "0x92fb8274ca0a0179e5241f0d9c34010f6db3d8408912d151315e924b9013045c2a50d04c67a35cece3e313e3e6462af7de2e43449a45172a9db80893585a30201b",
    "signer": "0x54B193bF6F1e27B02Cd72343a3e68cd19c0110a5",
    "userId": "492531535"
  }
}