Revert "Identify subscriptions using uuid4"
Revert "Identify subscriptions using uuid4"

- This reverts commit b1a8f6d478abca7752b9ebcb87a1022635c95098
  as the use of uuid is probably overkill

tofu-rocketry/ssm,apel/ssm,stfc/ssm,apel/ssm,tofu-rocketry/ssm,stfc/ssm