Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '554dc01e7d2a933c5918e8a9c0d411b8093893027999ac8bdfbb01681c4734ed' 
  AND token = 'zk+lcsc3xFNjSmQ4oQuIBt67x0JmDgef7trQdzwIPUQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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