Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '3106530575835e7cb9833587fa83be94949bcd97b87d981c0ba51c573b2374f7' 
  AND token = '9EnqJF1cJt1oNcdPbSk20Nbe3nj7fqNTqQLRrksfwjw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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