Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '0acb1aa0a26681bba10f94b9a918c803106224da08a3c0137b3c79459829ece7' 
  AND token = 'QauIeeEW+NCfyAOefjk6zT2vNQWSsxr4IqUM9VCvDX8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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