Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '180accf08214581ca5cf9bb64c906605e5ce2333200daf40a72ee1ede2f6faff' 
  AND token = 'Jc7XXWfweRJMK16/6ZB6IO9NRXjMMoQ2SA7hWjTNxg0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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