Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7fa1c310a287d88980eb1f37db06499f1893445b5207f18c9bcb46085d0d831d' 
  AND token = 'WiVO2Z7PsnPzXGixaO0QtAu1sweZ1y29fzXjZkpLJ6o=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00016

JSON explain

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