Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'bad2e419812520d3f7c0cc11ed216bea2b710ea5b4ad8a01d354c3792b9a7598' 
  AND token = 'Aq+w9e6aTkXot+qTwbzGafv7r34PuigtJVkrySnEz9E=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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