Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7e85a285b455fd4c0ae3af8906ec839a2b4e4ed16c93a7efb0c845191f5420e5' 
  AND token = 'JWoU0dDtg0LBXv2IaP5niVxayYxDKzKq3WgOSn7WUe0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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