Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '0bf27c85ecdbb17a42ab33aff2d01d31674c21095ac7f65762449ced386e98c2' 
  AND token = 'KNd9E5ItcPegt6XyAYKdYjdhk1nyQl+cvu0tOUpkhlk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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