Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '07d733b1f87b5654c0d59865461d4714fe8a01e095b06de6296377ae50f62117' 
  AND token = 'NDGo3D6ln7nelSmcGDEsXsjpaITyJTOMA0DCazqhFdI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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