SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'c22783b9c44cf5deb8d834c8de7c76efd133389f1cfcf6e60144d5b5c95a555f' 
  AND token = 'LidIvs8ZHUxQJ0QIb0BRLaYMvhSrcGVNxaxlqOqUl70=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00024

JSON explain

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