that were selected by the support agent.
| Name | Type | Required | Description |
| key | string | ✔ | This is the "Asset Server Key" that you provided in your app's Steam Economy Settings on the partner site. |
| appid | uint32 | ✔ | 32bit App ID of the application associated with the assets. |
| steamid | uint64 | ✔ | The 64-bit Steam ID of the user to return assets for. |
| contextid | uint64 | ✔ | The 64-bit ID of the context these assets can be found in. |
| actorid | uint32 | ✔ | The 32-bit ID of the support agent executing this command. Use this for recording a change history. |
| command# | uint32 | ✔ | The name of the command action to perform on the matching asset. For N assets there will be multiple command parameters numbering 0, 1, ..., N-1. |
| id# | uint64 | ✔ | The 64-bit asset ID of the asset to modify with this command. |
| argument# | string | ✔ | The argument string passed back from GetHistoryCommandDetails/v0001 for this action on this asset. |
| command | string | ✔ | The overall command being executed as returned by GetUserHistory/v0001 |
| arguments | string | ✔ | The arguments string that was returned from GetUserHistory/v0001 for this command. |
The output from this method should be encoded in the JSON format.