Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '669935f4737bb78f0a3e87fff9d655e083982c7b00e1a1676438742dd4203863' 
  AND token = 'W7JPODeMhM8Y7Hw3JAW2MLn+AL+oPEGWOkzs2o8jYD8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00034

JSON explain

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