Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '78b194cf5fd36a1d7af4ffd35e7062057ced5742ed6d306bf5707905a151e206' 
  AND token = 'EeytUCuIoHUkz7ca715Me9L5hQHxTrE/alLnJ2wEEJU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}