curl --location --request GET 'https://api.smartpost.jp/v1/messages/a0d4da8d-e22b-4c75-ab88-077936665be1_f1f8bbcf-151e-4fbf-9700-c94e90bcb75b?change-read-status=false&with-image-id' \
--header 'Accept: application/json' \
--header 'Host: api.smartpost.jp' \
--header 'User-Agent: Mozilla/5.0 (platform; rv:geckoversion) Gecko/geckotrail Firefox/firefoxversion' \
--header 'Authorization: Bearer <token>'