Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'bd86862a464696f3ae8be0e322e3ada412a2d1b4b67791f6dd8444ec01ec090f' 
  AND token = 'OZ1OrW9dNCqhipoLLy5Jla42kuB6cGoiJX5ufo9asws=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00024

JSON explain

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