Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'abd590f03ab1d3947352da7ac49260a9f750e0a413b9fd7f99cdf43602bc1331' 
  AND token = 'KmkCFhXuOSf5SQtmL2YesQULQG+aQrQtXgpoGnzEHu8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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