Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'eec321bc0822fc2770b6c62e121eebd23b5d8f180a063af383cd8d996b76a1f9' 
  AND token = 'BRTUgo1C5aKeWcacpq23ggmIrje5iXEuHebrFMFO0VE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00047

JSON explain

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