Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7105fda0e6ad5b18b8d6611c98a9b4d6cc2ff166d0589fff4fe51984663e07f8' 
  AND token = 'rQy7hosnqnaoVVdlZbFExCFp3jyEOCJ2O28+VQPY+WY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

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