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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '85e3f20d0d4a149164a14b853923595b939bbe24fad7503b3ed6041c862cc8a7' 
  AND token = 'S4pi2C8CGpNOx8pC6SF5pm2wF3Rc/IIGaEga+LR/PO8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00147

JSON explain

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