Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1eb88c2010428dc35c22426a5409fbf429340a8b0d1f118657a2c0a533b06ba8' 
  AND token = 'UHyjfZAjKOOnsdKgEiV9jrjLzoS8XbtdDw2Va9So/JM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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