Sandbox

SELECT 
  1 
FROM 
  q_lock_keys 
WHERE 
  key_id = '06ccd3ed73c16dd942bad3f4d11131c07f1df645c1712d2471738394e63c0e71' 
  AND token = 'FX4RfnoEaXEVXSWxDUBtXuG8eLNbkye+LmLo7ADMvt0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00025

JSON explain

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