{
  "manageEntity": {
    "action": "Create",
    "entityId": "738878430",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":738878430,\"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": "0x51a1f1996da5de18e2e9c8900787c54f8ccfa25a3beb8c1b0629280b18bffe57",
    "signature": "0xdcdf4d4c92dda4db5d4eeee59f349a31fbd1460c90e22277ae00bc572c94e0117d64b3faa87109d2d38c44998396950a7ea510d4781a12cb9e8276475b1eab6a1c",
    "signer": "0x19336C4BeaAfDD8D24476dE5a6C3524a935c400f",
    "userId": "1891790"
  }
}