Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '14661be9b4069e3bde7631cf6d96ee240e6f9a056c76b27f556177989cf0c530' 
  AND token = 'PqPeLnF9V2oDJxwFpCgh0I8C+sn11BE33huMJ1O6Glg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00023

JSON explain

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