Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '148e8a2608062b5022aee9b3a050dd790a112b8c5f004873799a48a1bdfefa8e' 
  AND token = '3vPuMnAsoMb10QWPZt9v2sKsjaa8qPsUQZ/fNphb7n8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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