Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '11f18d254cbd469b191374709465732734624450ed0bfb85b3900c5ced7b0e5f' 
  AND token = 'pxL6FW36iyqPjjvLlUdnc7+XrVqR+CkXfnZW+C6AsT4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00103

JSON explain

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