Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd0a32ed539b3d61f05fb424297678e3db77c21e6e4f597754c32cd66a2bf8831' 
  AND token = 'xoFp20ylA+IZMeGhPNpo37sAzHhLzEp1sYI66NaMiB0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00046

JSON explain

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