Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '9184465b0acf0e3cf03d746198f1245af1fb1ed5c568fab6404174f3c751a37b' 
  AND token = 'LuN56qpWXMwJs1HUa0d0SipQHGDUMzKXtS2qEokwsaM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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