Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '01428522b04e14a4cad2595809aa8ebe965e7fb421d1b2eda1f6d13d23d33101' 
  AND token = 'sbOL7IbCyshqCUMUc/aLftGdWuy0VfWvdYb4q6eiS9s=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00021

JSON explain

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