Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'fbfb68a318c00d4b38fb54f179c0ceb48ebb7fbdaf8cf4185e505826723baf94' 
  AND token = 'itQz7rPeXj++CpLoB+tlEzNblVHbvDch4S95ZT3V9HM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00049

JSON explain

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