Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0c2d712e299469e0bc1f97f35eace19c714d857e7605e65345ed8971269aebd0' 
  AND token = 'yFTmhBf9tgaN4B2kyCCHPOZTMoMyWWCnN05gCw+0ceQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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