Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0016ced9dc243d4f9e039055d973a8c1c582660717dc8921be3e6af37a64f411' 
  AND token = 'cQR3ZEZTb/IRo5yiA/IuPR2WJRETXHn/R/AYJev6MV4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00068

JSON explain

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