Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '36e65612a343bf2cbcfcc34cf8a79e5fa4488a2c3152f6489838df1a2bd0495f' 
  AND token = 'puy7OzesQfto4IFHHtwizkDXl1QJ9INJE0TTeQ7fWc0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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