Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'e5fdef5573a1fe7972727f47c1beddc1c810bccb430cd1a4c17ea3311e169192' 
  AND token = 'swnR2pLEfdraKhZzuOabME1gU1MLCgLCxuEc/hjU4lU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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