Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '49ba8a0f5bfb93a59af77a4a39304cc1355b51cf7b24e7fb90ea6a4cdf7d9c43' 
  AND token = 'Ch1Q1sak5Uod/UQ3kRi1OMIeYRFSERfqs3Idirid+o0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00035

JSON explain

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