Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2fd65b6726077db23d5bc86c231baba6151d2aed3b9f74851b3b7413cfcfdab8' 
  AND token = 'jIq2Nhy/4ud0yGAC/szi/RGtqrNK0LseS/DaA/I6DQg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00016

JSON explain

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