{
  "manageEntity": {
    "action": "Create",
    "entityId": "1609954098",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1609954098,\"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": "0x8f15e1bf565363b0467ad1fcc36eb874749d6ce5d16160cd6b9ec76f1d3b284c",
    "signature": "0x11669ed2c78c1886d9674efcbe54dfb9283b8c00bb6e60b11cfbc6dbb167855a45a57a637a64169b513812b932ef6a4171b109242d91c1702b1211b64a786a131c",
    "signer": "0x51972E0caB5c3f736515C360501d18d4eDa83d0C",
    "userId": "662243331"
  }
}