SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '09667194abae3607ab1a9914bff4677c6cb3cff12deb34947c4eab233379f942' 
  AND token = 'DrrclM6BG+fslMfenBLB9FcVDF+asKxkMVqUGWjb3x0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00016

Explain
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE Impossible WHERE noticed after reading const tables