{
  "manageEntity": {
    "action": "Create",
    "entityId": "574207793",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":574207793,\"description\":\"\",\"playlist_name\":\"tonight\",\"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\":[{\"timestamp\":1777412645,\"metadata_timestamp\":1777412645,\"track_id\":1435567073}]}}",
    "nonce": "0x28cca780bab0de74ca126769423fc1d502e1c893146386baf0562c772a0836df",
    "signature": "0x41849333878abf64b89387b2b8c2357e3f390959c997e22062d70c808e7e67cb269cecd9195665d49e734dd4b58abafceccc103b105c07df49385b3014e991ec1b",
    "signer": "0x187a96d4aeCA80d86902567ac0aC583Eb555E72C",
    "userId": "601253055"
  }
}