{
  "manageEntity": {
    "action": "Update",
    "entityId": "886322462",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraognqpuwj6mdm6jr3tjq6atc3qssfjuiyeb63hgc55yagevdpcb5a\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":290007644},{\"type\":\"playlist\",\"playlist_id\":1294844198},{\"type\":\"playlist\",\"playlist_id\":885443899},{\"type\":\"playlist\",\"playlist_id\":1528431597}]}}}",
    "nonce": "0x8c0d694d254975ac4ad590b0f81ec68d5569413186412b9307a2adbcacc924ac",
    "signature": "0xa3234fa93cd3d684c308a72e745fbc47682223c133ddfd9a50c0a8638aca70f756425e55919811d89ee8b1e7d31e5ac7349ec0fb78674716972484eecf1935561c",
    "signer": "0x3C4fd388C8397960EF802E5718EC2F6B1585171c",
    "userId": "886322462"
  }
}