Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '6224bcc538910fa89f6230dcc4fea8ea00b0a3ce6485c321a8f2226a6f924036' 
  AND token = 'wbItc4L+vUxYnZWhI8EZxR2zBEijLl5vD9aR1HDpkeA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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