Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '8577cc575683066400e724c453250a3981978ae3b4ac60a064ae411f6b5f4e8c' 
  AND token = 'goTyJBCi0SYanUdMy4hcLJJRDrzPkvhXt8gVXbGiYHo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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