{
  "manageEntity": {
    "action": "Create",
    "entityId": "1883164321",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1883164321,\"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": "0xae7d06fd9ddd64871fb9889998efcc09d25077eeeb9c4d5b0c66c2b384b4472c",
    "signature": "0x7eb12e05a9a32b74c06d6b9a61f54d8a3f81d63ba511eaff31a7af2d375ac0fd7328613cec7cc0fb32e9c7a9a2dc0b715ae1fe9c25505767e95ec77e61340ae11b",
    "signer": "0xd1CdfC852326b8427841805E9aA02D39705c750c",
    "userId": "201996771"
  }
}