Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '71da7f3bab0927a1e4e28145f0d480065a60a7c9ecbcefb07ac73bc089ac7bb7' 
  AND token = '1dUCUIPacRsoKskFJAIs+lUXg5XzaIBrAQL954jsBUs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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