Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'e532a833697285fc9cfca35b7076d8f2e62cf4d6ed175929f83795a429a9cfd0' 
  AND token = 'Htk8R93qMQugQ2uJMpo/LHUGoqeB/ewGPJoXuOk+HuM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}