Sandbox

SELECT 
  1 
FROM 
  cscart_multi_declock_keys 
WHERE 
  key_id = '5729f1d7f1705644ec895097eaf881dfcd4d925055f337f5290cf127fd1318b0' 
  AND token = 'wOCzhHNeWISHV4UHyrHqVF66wW1Q2lF9z1+fzMcBm1I=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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