Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '945964044ee4ba85fd7220711c0642a14b71224e173921d4d480dfd5bc459477' 
  AND token = 'B6OYDY+eMf97dzey5adsUwbMN5dNk1D0SfbaMhz0E/c=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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