Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '9bbee7d1018dbe44634b92168b3780dd524942dc47ca123fdbdc3cda311d8965' 
  AND token = '7t7rjYGUhtnFUeNmjVaZJlTiQNnWhRby4gdY7ZG8tfM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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