Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '9e9aba448dfdd8123527f0ab643fc0b3168eb1b11d2f5614192ac611496e5d1b' 
  AND token = '+URgH6F32m/P/iwfT7T7754jJc674jXnFD4TVRDKpNI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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