Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '1e3107b1715141b486bd3e6dc20b28b2d9f092b3b6c4bf0bfb3ce6ff42473d39' 
  AND token = 'iFVHO5Difv4bXdQQ4a68WTTl9gP42wqGURfypKHJKSg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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