{
  "manageEntity": {
    "action": "Create",
    "entityId": "1958780889",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1958780889,\"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": "0xdc383b1807e18c69b835574828e6a69b16f9a4ed3c193ae1e848e9eceeabd226",
    "signature": "0x6bf5a0884c971d235329b414fc9534e3ba27d9d16bc64fb0a29a6371a1270580779d2c58b13fb108d157f84c8b851d1dfe630197c58c2fac5ffdc20802c8f0e81b",
    "signer": "0xC789b473E10EF4b57f078893a38DD5E462d94368",
    "userId": "564344"
  }
}