Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'f0737234a663f1b07cb834b90f1f6f106809ac8478187ec8a7b2f342cb1a0caa' 
  AND token = 'wylf9g1sjjppZZ+P9O7UWnNlme1LNZyAhhZN6uriHSk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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