Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '4a15bf25d11735c49b75f3eb7157c71df44471dbab317bb52f7f72d0b4723916' 
  AND token = 'uxbMLRjurz8N3xoGwCmz3YigcZ8jc0euYix1SqfAOf8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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