Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '3de22ece9569e3a43ec8eee887703d12522e067ce627f1c3e48b4c7a036acdf3' 
  AND token = 'aezAuC7Ou8Mv/FcchTXg1lFG0wvO8wxM8VY5CgR37A4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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