Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '8069019c07d006ac272d2ab16291c9ae66999d3fbf497ece7a44f3521896ad82' 
  AND token = 'p8FgKUiDEK2RaKl+qGqZPVe80t18JXTkOaJ9OaiLnf0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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