Sandbox

SELECT 
  1 
FROM 
  cscart_june_setuplock_keys 
WHERE 
  key_id = 'f63dc8f70d0527d961abd44d09eaa519c848924a2808bed3308c506d2fc0a9de' 
  AND token = 'bTsu97xAXjLXPCu/hFSAJv8qAjUoq1I0hXArnzAwhtc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00036

JSON explain

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