Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7db628d898674e0f8146cf54fd95789844bb25aa846492ae974ded9d4f73130b' 
  AND token = 'jiFZoYYUpN5jQWtE82Ae/Kl5f7XQR1sosLth1GmKb0g=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00150

JSON explain

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