Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '63208c2d496013c44d51b338e7119d5d9a4e739cd7f4f1f16b1d03f0baf50fec' 
  AND token = 'se+L8UGmO3/qmKjMOoYs/0NulG7rotUpxyIFwP9L89I=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00016

JSON explain

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