Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'fa23533355366c6f4c4e96ae181eefe784d39213b6efe787da4242024cea7859' 
  AND token = 'k4sd3BclgwJVLANzUqvcnj/38Sw6dvFl2O/VZ82EG/E=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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