The Consent Receipt is a JSON Web Token (JWT) corresponding to the Kantara Consent Receipt Specification v1.0.0. The receipt is signed using public key encryption, making the contents of the receipt tamper-proof.
The data received from the API is an JSON object having the JWT token in receipt:
{
"receipt": "eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9.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.cldpXCDnmru4QDd7feb0seswzhW9SQQJCEG9smCYTB8WJh9DjcvBNd9mygVdORbdyVcHVWVnIgebqeq24SNiJxxbGHufuVFWI4AbXhKLANKc96F6erj81zhTqZEnwhuYexpQiEORUCrX2JmEFDFfcerFJSKpCHo_NAgoD5ztrLv8n4Tiv5QCRgm-yuH8YsGt3pNkRqRCe005TxNMRQnTd_DixEBvxdQa-sTU1YVv-byOYIS2_alHsUHwNAdqOYQg2eWezsS0h5EIxbv2jZG_oL9pw90A6JbOY6PGH4AqmQ38n69OkKAVqutTdPKAHFyAAdeZJdaVQHXrmKQAqyIW_Q"
}See jwt.io for resources on how to work with JWT tokens.