Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0ca40b7115add39b2a04be57cd637f99027e9afd23be6edf2db9cd5a6f39cd8a' 
  AND token = '41XY6XS+R5nbUX06cpt0jEgtrvSHFtQTBxfbl2BkupU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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