Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7971a2453d3829ceeb3603734bda54e08e7c6f160760b62825eceda985bd5d80' 
  AND token = 'B9N5hCodv3JVoso24VDDE5AVHmfNQ267jayRXTiXCkc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00024

JSON explain

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