Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'e658f13bfea11de6bc15fbeaa60ce038b5cd2e900f83128415dfb7aba67b8d66' 
  AND token = 'uRxYNNTuDW5Ho398hyxu7tVa3lwBvw0lnlCjcovddxg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00027

JSON explain

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