Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'fe995df72fd08d0d37574a522eaae387c80f8c1b2a123777c0b2bd0d9ea79b26' 
  AND token = '88SJiX0cowQtu9PjHclREypZTZBHad2lTj74EKKdfxg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

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