UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'g5p1Life67Oxpjb3QP56XDXWDshEI15rFoaBx9T47hg=' 
WHERE 
  key_id = 'eaa3d3cfd8d657717a02cb59e90aa0ec2ea6cb532f32e1f1df03374c436e0cf8' 
  AND (
    token = 'g5p1Life67Oxpjb3QP56XDXWDshEI15rFoaBx9T47hg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )