SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '01182b695361ead90b2c5c541bee2e3549f9fa8bd99e6546174ad33717728e06' 
  AND token = '+LufaVBV6tD1vytm1cRz7pp7uG+5Tc4tJdzVxGtJQxk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

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