Sandbox

SELECT 
  1 
FROM 
  cscart_multi_declock_keys 
WHERE 
  key_id = '9f9ede3cfff360267757e71c4f538762e8f56a252aaaa5c1b36610061858d8b9' 
  AND token = 'LFQr652ADoc/Mq1WsV/3O1tFdCfmpJYsuIe/HVB4JeE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00025

JSON explain

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