Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'a458454a042949658132b05bf585ec79f80005e7b9c77fb038ed73f7028ff8c6' 
  AND token = '8V9eUcP0D0EXrexMbjYZPU3KXYXLTqO3KmenGuyeVFk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00043

JSON explain

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