Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '64c7ac4717bc68d68fb04733e8a6dc84450c277df9cd821ba56d7b3730d9073c' 
  AND token = '2gXptC94jdc3NTg2jFIpK2gEl0xs4moH5d91ntsnz5M=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00043

JSON explain

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