Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '63b8c7007716039eeb2547061da0dff1edd9d1b45117ad718c60a356d41f6105' 
  AND token = 'YGGuiNazV/IE9Vjr6DiwM6pWKS3asBk84yLhnCo8tBA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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