Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2af19c6344f7e626ec1785667a28fb93938a58a952a3e60457652f92de9c3250' 
  AND token = '2O1XmFcD4WIcOsCl0Y8O65SjDSHQx3A40xwM5hx/fpM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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