Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '09e63ee04e585831b5b6e38e4cbab838f6615d3d1a32dad171eb109ffc69cf0f' 
  AND token = 'qWJdUJblwALsnUmTxwPwyj5lsxIs8bjZxSgF1NiACEU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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