SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '89e4eeadba042730a82995efe36b64764685abfa95ef0a3853df51a1c68ed4bb' 
  AND token = 'VTT/oB1Yerpi819v2oZLa5ihLjU3GMzcukdLxRlNTrg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

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