{
  "manageEntity": {
    "action": "Create",
    "entityId": "1291026001",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1291026001,\"description\":\"\",\"playlist_name\":\"My 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": "0xfd18e3955004e33659dfc685814c858af6298e166618e9a3eb5ef3e8de9be8d1",
    "signature": "0x28c74b585e84ab656a97af6ac4fc5c653fd2115b4bdff462cb0ac0fe8261986a4621447bf5b65168df40cd71940d42d3e0854a9a7ccb38bfe416e2dbd4be469d1b",
    "signer": "0x6f2E856bAE9D99f862016d2a2A444B395a759F47",
    "userId": "206867145"
  }
}