curl --request POST \
--url 'https://api.musixmatch.com/ws/1.1/work.validity.post?apikey=' \
--header 'Content-Type: application/json' \
--data '
"{\n \"data\": {\n \"identifier\": \"00001100196005\", // Your Musical Work’s unique identifier used in the work ingestion phase\n \"validity_end\": \"2024-01-01\" // End of deal, in YYYY-MM-DD format.\n }\n}"
'