Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'cdc28624df8994811f7fb508b371c7ee9fed113be1c844f7c082106c5c296ae8' 
  AND token = '1W590zaMFoK9/wWgXEHmsl3EZ9Rn9TGi3bdzxNg0sV4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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