Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '01f0aefc88031ca3cfe1d97367f2a43bb4583f8a716c067459bac49a5b478e2f' 
  AND token = 'TPbEQAd28ScpUAwx8Mv505wvbUbhRiQGW1KpOA52IDA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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