Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '91641fa9cb5c849b635ab110785d499768316c7662224eae12ae8115ec894bac' 
  AND token = 'AWpStgaved2NBP9bO8gYQwnR3xqAWYI8lD2T6CSYikA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00118

JSON explain

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