Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '85fe8f9d5852a96c0db027070429821cb84ff68854c58883e9b726129b656ff2' 
  AND token = 'aCxfmSvrGtoSqIZZc6jdr2Ip0eB/e0kg1p9V7lzIUVU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00041

JSON explain

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