Valid values:

"referenceID": Generated via Evrotrust Web SDK

"user":
"documentNumber": Required parameter.
"firstName": Required parameter. Allowed characters "[A-Za-z' -]"
"lastName": Required parameter. Allowed characters "[A-Za-z' -]"
"phone": Should match the following pattern "+[0-9]"
"email": Optional parameter. If provided the certificate and signed documents will be sent to it.
"language": Optional parameter. Valid values are "bg", "en", "de", "hu", "sq", "ro", "fr", "it", "mk".

"documents" The count of documents must be between 2 and 20.
"description": max chars 4000
"checksumDocument": SHA-512 of the file.
"annotationParameters": Optional. If used can appear up to 4 times.
"annotationText": mandatory, up to 255 symbols
"fontName": mandatory
"fontSize": mandatory. Must be a whole digit between 3 and 72
"fontColor": mandatory. Must be in CSS hex notation between “#000000” and “#ffffff” (“#000000” for black)
"axisX": mandatory, integer. - Must be between 0 and 596 (for A4) or 612 (for Letter)
"asixY": mandatory, integer. Must be between 0 and 843 (for A4) or 792 (for Letter)
"page": mandatory, integer. “0” for all pages, 1 … to specify the exact page number

"signInfo"
"type": "PDF1" (PDF Baseline), "PDF2" (PDF Baseline + Long Term), "PDF3" (PDF Baseline + Timestamp), "XML1" (XML Baseline), "XML2" (XML Baseline + Long Term), "XML3" (XML Baseline), "XML4" (XML Baseline + Long Term), "CAD1" (Sign any file type), "CAD2" (Sign any file type with timestamp)
"algorithm": "SHA256"

"groupDescription": string

"coverage": 0, 500, 2000, 20000, 100000, 250000. The amount is in euro. 0 stands for unlimited. 1 stands for no coverage.

"certificateType": "integer" valid values 1 - Qualified еSign (qualified certificate); 2 - Advanced еSign (qualified certificate); 3 – Advanced eSign (advanced certificate);

"vendorNumber": string

"publicKey": base64 encoded string of public key, necessary for encryption process

"urlCallback": Optional parameter. Only https:// is allowed. It has to be sent a host name if Evrotrust Vendor callback API is used.