Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '93d332c2f13a8b6213b839b5183068210a7bcc20ec9de5e767db53aa06bb0ff1' 
  AND token = 'pcQ5rRb/E13UdKEYT11iOqRgU724wf9XA//GK4jWqtw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00035

JSON explain

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