Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '133444a3892f6f25723d15ff0688cca269cd61cccc31003da96c34e484ee44bb' 
  AND token = 'g5TxSPMawOwZsotqoKh0sLZKHhj5CWSMwyY5DfMFCJ0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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