Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'c47abfd6a9480dd379d7b021958a824ab1e35d88c73b14a22ec56f4790074cbc' 
  AND token = 'A23baahMrGrVlJIm/QZbePbqw4I0yL3x7iLuYJYK0BE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00039

JSON explain

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