{
  "manageEntity": {
    "action": "Create",
    "entityId": "840251694",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":840251694,\"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": "0x055a99dd902f92db8eaaa271ba6a86b2fa6562753d02944586a2e9dbc44c8f0f",
    "signature": "0x1952fe5d819e2cf1182071d26408ff4e12f829f852a1f9156bb4c0b4ecbc45193ca55ea427e906b10df744951f09376fe8bb14f3c55643167159410f2b53b84b1b",
    "signer": "0xa054C1f5f50fBCcd1658Cd64C953C4b1f26f56A5",
    "userId": "298949663"
  }
}