SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '01086ae965f1dbdbb88b94da85b5b80384c75c01b3bac1ad669a24f356a6b346' 
  AND token = 'B2AVvpOYt/tOl3pvvNuRVmT8aj0lUaMXuJ1jQJCG5N0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00063

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