Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '8a779d69effc38ebe7ef9bc6b448af1c586ffe46cac9623ad33426dc47166349' 
  AND token = '55eLruvBlX8tfQi6suRep/eBq0uWPl9ZTfrukOxRdBA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00088

JSON explain

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