Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '62edc96194c55d688b7dd1737facac55d2b591df27442cbf31c48bb5d152d24a' 
  AND token = 'Rf/XkefAAsT2enlYrnFIeCRLaFrcLJcS/s61wKtFn2s=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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