UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'gnhlPOBf04MA37qx+50kALF5Tj16QX59eH1MJ1YV+mM=' 
WHERE 
  key_id = '1c19a849ab5cf3d6344823ed5e26713b12740a02ee66d02030d5579647ca9767' 
  AND (
    token = 'gnhlPOBf04MA37qx+50kALF5Tj16QX59eH1MJ1YV+mM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )