{
  "manageEntity": {
    "action": "Create",
    "entityId": "1773598463",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1773598463,\"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": "0xbac293580bd7972583049ce329e6e6966dcb57dcccb12e1749b0675ece333d69",
    "signature": "0x19e92ec7170af751266b126f35c77b50a9bcdc330b137cc8df0ebb73efc6370e7569836c43345cbb5a51860cc992b183c608fb2209a065233297de0162d2ae641b",
    "signer": "0xDeBB0409dA324f94c21071bA9D4D97d95a02ED62",
    "userId": "478491171"
  }
}