Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'bda1a11b1809dbea056a642917bb089b74e6786208e50a0e80740cdd20885513' 
  AND token = 'uFs+BkoxGYk6fqVIP+y+URZGcBrcox3oNK0CD7v0JCU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00021

JSON explain

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