Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '0f64a1b443e6c0869127c6fa9d6efbb1e1b368af7db38f3b4e24927af6b15587' 
  AND token = 'TNf/azxGa2r1obw2uA/9VN4OTFTFGvZLfCpTp7sNfDI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00050

JSON explain

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