Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7f0c0b08be1289e4320d1ff01e35150ee5abc1fc52530e2a5bb74f5d8f16fd10' 
  AND token = 'ojLezcBX4mMrMYsYTX24woROWTicY3GZLoPWSiXvsbQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00013

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