Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'b556e35bb867aa8e102948c0cd12aed756e62174a3bcffd47bd28260bdcecdb9' 
  AND token = 'H6D9L8y8o9UxZMoUy5Rk1qFMBADiz2TkSccYim5P/0E=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00041

JSON explain

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