Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'e2e2cee29acc7bb720a83fda48608edb3b27940671d09c27e3e2acf010f689ef' 
  AND token = 'bmcA3H0hTXec+tJfl+qR6Fb2ksswRzAqlCakcbDZsZQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00045

JSON explain

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