UPDATE 
  cscart_aprillock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'GH379QLohq3XSVYym/YplW4qlVy9d7/vkuP1kydBnxY=' 
WHERE 
  key_id = '6d2d6fcb708e80a2ff3d929026b2878bb1f3e755fc6b3669a7a070883cd9bb8b' 
  AND (
    token = 'GH379QLohq3XSVYym/YplW4qlVy9d7/vkuP1kydBnxY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00033