Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ce6dedb16b80374d90be91a7d5a538bd7ff11ef33c08cf08293c9358899776aa' 
  AND token = 'nKzyPCaSuHYR/4z8+y2qefAXFiks7yMxxH2H5Cbpp1I=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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