SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'efdead74aa732aea4243983424e4d4f1d436c72c59fbe1cf846beffebc94fd92' 
  AND token = 'mBMBQ3UcsmBH9InaBtPulEWq/LOpEa7kEv2RCCgxa9Q=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00024

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