Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '569763b72ccd89d6999086fc9deba30c6f1f31d23cf524800c6061eb065a68d0' 
  AND token = 'PLgJKibowvYe7g06nfW+LwT4a8OYa7mTWR8f+WIGm+U=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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