curl --location --globoff 'https://api-uat.x-id.io/v6/signing/request?request_id=' \
--header 'Authorization: Bearer <token>'request_idでAPIをリクエストした場合に返却される値{
"digest": "/8Sh6xef604iedYjkqN0BnQ2ycFlNmvxNw0tsIk9SFo=",
"signature": "Xr92H+ieUHUq59or248v2ILRGqU2ocefZf+RG1DWcFkImYVYv4TzIgcFGG2NktJqUoLOfpXMAIwfOCbW4ENaPETm9vAVs2FW9OYykf49z+gTAVMujjv/DjUct7plvNBNccbUV8fDLL4YU1B5mdOE/sszzmfKQDRFDkOSKX06q4mYlev+cqYi+xSuVazd5acbIDCEwUnm1cVKVNWimZVWFLN0dUjBa47jhvbWI3aPxPIW3k7mMNIGn1Jf1gee7h0jAu0idcUcoPvHj5ew59QhFNucH46cCrN8bi0EQmVsCPTZ7Js/SFQ7J6Np3P7mwvzpbi7++wUuYv/S4IWAAj/YjQ==",
"status": "signed"
}