Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '11c209fd1f453a5cae326fc0545c60d5a6523bce92b2cd353882e29012fdbe43' 
  AND token = 'wS0X4mDgFlxylh7eeDpORBbYako2+wAzxqqsfwFXfDk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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