Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '41e2d40ba757c9fb29d80de5754558fb63aac00cff303857df76cb492d692d61' 
  AND token = 'ccAHaObxTT/hFtSFR1rWIJhSLVlpZkKijmwmIFIh0hA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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