Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7912efa2b4535f047c1b43104ee24cbbcd8ae5813632bae4b592abc91945f6f7' 
  AND token = 'FVkJKR9R11s8yLXsatcCodV6wVhZN2ZuzDJE2vk8fc0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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