Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '07464d5de1f4f50eb017bf3dd291f9144b97f2a19234b2795d274251303a6602' 
  AND token = 'g2oF85uhLsKFJtAm1YE0HwwA7aY2Wz/cEDw4nRnnBrk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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