Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1eb96a9909322831502b54190064c3dbd9820badca2aa9f1487a88ec29c6c7be' 
  AND token = '/F/Fsip9W8gj5FWOmROdW/Dg3mvTLcxUlrqN6+R4fzU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00042

JSON explain

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