Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '91858f9a186dc29ba1321d8a991f4fe9aea8005c271925bcb2bf67c6fa4955ae' 
  AND token = 'PZ4ygIB9+NmERZPsEX9w7pycC1AGS48Q6d0L+a6zNtE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00045

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}