SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '32231eedbdfa31bf84525264edc98ed03c9f82ab375c138bbc154798a4f30ab3' 
  AND token = 'K0qyA5pYAh3UzS20xjv+GbFsvKjpDns3u9eqjBUXJjw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00094

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