The timestamp when the event was generated, typically in milliseconds since the
Unix epoch (January 1, 1970). This value can be used to track when the event occurred.
The amount charged for the current billing cycle, expressed in the smallest unit
of the currency. Here, 1500 represents 15.00 USD (as USD typically uses two decimal
places).
The number of billing cycles remaining for the subscription. For instance, if the
total cycle count is 6 and 2 cycles have been completed, the remaining cycle count
will be 4.
A collection of key-value pairs that were provided when the object was
created. These metadata values are echoed back in the response, allowing you
to store and retrieve custom information such as context-specific attributes,
references, or tags. This can be useful for correlating records in your system
or attaching meaningful context to transactions.