{
  "manageEntity": {
    "action": "Create",
    "entityId": "1643166288",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1643166288,\"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": "0x91b96b2da0671d7cd315b9823c49324e9fd95aa8cd2d8299f311e19c33a6c208",
    "signature": "0x543cda20745118fce0d54b1f305380217fb829e6c08c1c145a0f9448c0793a2759e5cd79cf70b8554b7b668b9c6f224ba77556e39b155673562d905bce34dde01c",
    "signer": "0xfE8b7901289A70702AC15CcB11911b872E54e80D",
    "userId": "540022120"
  }
}