SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '22db723f559574c1be3ba9616035d1979ac18a9d30a85fa71d7431d86d43cd2d' 
  AND token = 'HVqsy+oGI2Vamh7VKgNcSudkzZgmhvdXVDsw5NWD3E8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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