UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 300, 
  token = 'G//wD4kIpvpmpQKhCwjcKWgkm6xnriPaeX5aINGHkXk=' 
WHERE 
  key_id = 'bfd6ea4e3579bcd05b22a3f51574c4690a3e2a64080bb2d71e4b7f8ed9ea3cd6' 
  AND (
    token = 'G//wD4kIpvpmpQKhCwjcKWgkm6xnriPaeX5aINGHkXk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )