Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '9d276d89d783cf7a5cabd44f3bc6b06527e2ad43395b48d6fedec1596009680f' 
  AND token = 'RM3jA8cLDCaBMQZcqfuQYGsuKPnx/e95/ZtChMWIOIE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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