Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '77ce4696a05b53818c0e520728e761bed8f682a9ccdb3f6bba99f8fdc3886c57' 
  AND token = 'JztBk2Cu1oa9hzEwAWc551DfhO1b/xzJSq3TMe4dXGY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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