Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '076175af3b4f5b9c1e79ba55702a268b3377a2e6532c303c058f1e81784608fe' 
  AND token = 'SJfVcdFbipilKjqurbCO3hTkn7fh97ZSJFbN9r/OAFU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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