Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '04efe118e1719d6ddbe16b214e4be1f0fbf0b36d0b165ceb219d85bb127e97e9' 
  AND token = 'xMVonXrp4drSpfP9Ov0sqlfcpuMzS0A+LVYc4HOaf8I=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00036

JSON explain

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