Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0b95f8e0e495db518a6075006e33df62006ad3b0e98fc6209b7aec009f0ab3ba' 
  AND token = 'HbK3aPowBCy61SWb4RRB0Xsm9zUw6bEOSnh36Dr/pbM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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