{
  "manageEntity": {
    "action": "Create",
    "entityId": "1902454024",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1902454024,\"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": "0x466dbac4fb5d19cbc58384c6f80ea7bc86f9d074d5b6596dbb9f7179587d9704",
    "signature": "0x66b81a84c265cbc9b3769b9a132be3194841647c7c80e0a2dce8d54e49cf58db371ac270e0f025deca5275e291676be23e1c2475d0b972a573678db0bf6a59591b",
    "signer": "0xeecAC0808DE6320b11157473c635f58fFc0668A0",
    "userId": "423422344"
  }
}