Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ccaddd2d58dd5aca49121b4900cdc7b79583dafba71ef403504218c48bdf56f8' 
  AND token = 'YolX8WvALuI1Xu0VUPpYEp6nOCODBBQHyatbS0at2pE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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