Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '00276dbd174f8b00080724b2d232bd6f6e311b3f327c0b7370b5f0b901447f53' 
  AND token = 'iEHvflqKxWs9OniTjedFxIglgJH/7WjXHFFM+1/i++4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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