Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '61bfde070b40ffdcc9a5496738dd405080125eb3e132470e6146c451b91dd4e6' 
  AND token = 'U3x2P0a5+28s19dq89fiw+yeNrcK1TqW9Ksmf9Ny3cs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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