SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '8aabc11fd4ff79cb71ced990a1b881fb8f89b317ed2ccbc5738dadf01472a14b' 
  AND token = 'Z6Pq+hQqcyQDcM4T6Gwzf58pYX+U11Bv+MGwIpQon9c=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00078

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