Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0062b8d7a3116b49e287ce53d972253abc0636ae3433094b503c15bbe85d5a87' 
  AND token = 'yji18C41QG4Zun5a86PQBm6YIzD99Un0SLEd5jsDy74=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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