Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0b24bd5907b99121be7f7b31da3b1bb7915da5ec9f6d0eca27e819395bf6f8b1' 
  AND token = '22Gd+xY/5NEPmlErWl7logcON3MmHm28KJbrw2c/YNM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00055

JSON explain

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