Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '80dc5002a1b52324476e977369db9a1c22bca1c7590b40ab8f228befbcfb12fc' 
  AND token = 'PJ/fiADWbqz4/hbW5A9t1h6oAKLewvi8/0bRhxMkwlw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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