UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'nolhjLdw49z+/BVQBqrkjYSktO/zhvMwjcJhQgQl/fs=' 
WHERE 
  key_id = 'a4840684aa4506c2c192e3323918415f242139d906f1b255596e8479694dc85a' 
  AND (
    token = 'nolhjLdw49z+/BVQBqrkjYSktO/zhvMwjcJhQgQl/fs=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )