{
  "manageEntity": {
    "action": "Create",
    "entityId": "1970206879",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1970206879,\"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": "0x19e50e43ea52edd3940dff02d03c9d36b4805eb4ba10979e3a4f0ef4db53b59b",
    "signature": "0x7597c5a6d95ce076b893f7f463125741525642464ceb500d96bfdffbc87dabcd740ede9e6c3a8e4e3f1e85bb52b10c93ee12f89964a28d8b178199d768585f321b",
    "signer": "0x997892Ba3dA104CdcAb8b169555d48E2884F6eC3",
    "userId": "137744695"
  }
}