Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '13e96b816b6bb6cafe60caf9d99959e45d2f5274e75347ee4faae7ce32dad44b' 
  AND token = 'vPm6mDrXW9uPMSynNzAUKilixWYLiB7fA7bRtR0HtFM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00051

JSON explain

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