Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'f32c35246e1eda1e180fbe8d0cec2fddc907c1531b6ae587b8415ab9c6760d56' 
  AND token = 'LwxLkuEuifM3HJJXq/fFrYzVcHwWTfL+jJkf7fG2e9Q=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00045

JSON explain

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