Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'bff4d0f3dc6c8428db2b7c26d2102895d147f010ba9cf371fff37c6123833701' 
  AND token = 'hd3BI+xTIf4LJLjkWnHRW8HQUFLQTbPKLcmON7ncyxI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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