INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '21988d09fddbeb45aa8e61ec8ca1a87098c9a04695c24e198d4918830f76fe6c', 
    'KMW4ZWhfH4NOYkD2N02HTtXRGOBxjw9AXt813dKowck=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00039

Result

int(1)