UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'G9gOf5r27xk+3EI/shAEB6UVLuHWET6gBxE1TYdzZ74=' 
WHERE 
  key_id = '264c7fe940f4380b0383a05d64bb26d13decb71505bc12f2633dfe111719057c' 
  AND (
    token = 'G9gOf5r27xk+3EI/shAEB6UVLuHWET6gBxE1TYdzZ74=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )