{
  "manageEntity": {
    "action": "Create",
    "entityId": "1226179010",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1226179010,\"description\":\"\",\"playlist_name\":\"New playlist\",\"is_private\":true,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"upc\":\"\",\"artists\":null,\"copyright_line\":null,\"producer_copyright_line\":null,\"is_image_autogenerated\":false,\"playlist_contents\":[]}}",
    "nonce": "0x4ab1566163b48a92a7680791e5a9b9f9b68c01ff7c3fb02c4cf372fd9ea64d7a",
    "signature": "0xcd98b42187270f29763a457ca1e041a3170369103440ae039a5e6d973525eabb0894fbe6eb1f0350dbe7163d38f656cbc57645a4f6dc8a07860f58225a587a921b",
    "signer": "0x58D31719051f3b9840A312D4fD7AdC68a8Af5E9d",
    "userId": "173906"
  }
}