curl --request POST \
--url https://mainnet.gomaestro-api.org/v1/contracts/subscription/initSubscription \
--header 'Content-Type: application/json' \
--header 'api-key: <api-key>' \
--data '{
"service_nft_tn": "<string>",
"account_nft_tn": "<string>",
"subscription_fee": {
"policy_id": "<string>",
"asset_name": "<string>"
},
"total_subscription_fee": "<string>",
"subscription_start": "<string>",
"subscription_end": "<string>",
"interval_length": "<string>",
"interval_amount": "<string>",
"num_intervals": "<string>",
"last_claimed": "<string>",
"penalty_fee": {
"policy_id": "<string>",
"asset_name": "<string>"
},
"penalty_fee_qty": "<string>",
"minimum_ada": "<string>"
}'