Mark was facing serious pressure at work compromising his neutrality. He is asked to join a protest at his employment that is facing cutbacks and layoffs. Mark will not join the protest or sign the sheet. He might be one of the first to lose his job if he doesn't sign the sheet. Mark stays neutral and loyal to Jehovah. He doesn't sign the sheet. Occording to the Elders in his congregation, he is facing future events with courage.
But according to the WTBTS, you can write and sign letters to the Russian government. It will show your support for the whole association of brotherhood.
On Tuesday, March 21, 2017, the Governing Body of Jehovah's Witnesses invited the worldwide brotherhood to write letters of appeal to governmental authorities at the highest level who were threatening to ban our activities throughout the Russian Federation. While it cannot be determined exactly how many of the letters reached the Russian authorities, several who wrote received formal letters of acknowledgment. Though the Russian government chose not to heed the respectful appeals and has misused its authority to attack the worship of our brothers, the campaign was a stirring display of the global unity of Jehovah’s organization. It was also successful in sending the message to our fellow worshippers in Russia that the whole association of brothers is ready to provide support.—1 Peter 2:17.