Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7c4cb8f3ae849fad75d58c585bc00e94e784873a73251b9801f16814d0b3a7af' 
  AND token = 'gsqyMe8TddJCOR7j62ipF/AJC2HbdjM240AHQOvTSxw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00039

JSON explain

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