"Follow the instructions below to construct a Standard Commands for Programmable Instruments (SCPI) command that sets the time base (horizontal) scale of an oscilloscope to a specific value. This command will be used to analyze a signal with a particular period.

Step 1: Identify the necessary SCPI command. To set the time base (horizontal) scale, you will need the corresponding SCPI command. 

Step 2: Determine the value for the scale. In this case, we want to set the scale to 10 microseconds/division, to analyze a signal with a period of 100 microseconds.

Step 3: Construct the SCPI command by combining the command and the scale value. 

Step 4: Before finalizing the SCPI command, check it to make sure it's correct.

To illustrate, when setting the vertical scale for channel 1 to 500 mV/division, the SCPI command is `:CHANnel1:SCALe 500E-3`.

Now, using this format as an example, and following the steps outlined above, write the SCPI command for setting the time base scale to 10 microseconds/division.

Step 5: Format your SCPI command as a JSON value. The key should be "natural_language" and the value should be the SCPI command you constructed. 

Here's an example of a properly formatted JSON response: 
```
{
  "natural_language": ":CHANnel1:SCALe 500E-3"
}
```

Using the steps and examples provided, please construct the SCPI command for setting the time base scale to 10 microseconds/division, then format it as a JSON value." Respond with at most 200 words.
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