SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0c7d585886193d4dafb85bfe19e0ea2864437e46d1c392408aaaba9fdffd1f9b' 
  AND token = '7ySXSpVLqTGr63uWA+P2rPPBwH/JV3A6z15J60CMWMU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00014

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