curl --location --request POST 'https://openapi.qiyuesuo.com/v2/contract/addwartermark' \
--header 'x-qys-open-accesstoken: {{x-qys-open-accesstoken}}' \
--header 'x-qys-open-timestamp: {{x-qys-open-timestamp}}' \
--header 'x-qys-open-nonce: {{x-qys-open-nonce}}' \
--header 'x-qys-open-signature: {{x-qys-open-signature}}' \
--header 'Content-Type: application/json' \
--data-raw '{
"contractId":3002477070639956965,
"watermarks": [
{
"type":"QRCODE",
"position":"BOTTOM_LEFT",
"viewPermission":"PUBLIC"
}
]
}'