Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'eeb068cb58c093e43344f61291b88d857b77d88dafc5f0b71cbc9e52b5b1613b' 
  AND token = '05nPPHuvHOp9lYtO4KDhkdcE55bhlHI/Rze9yHr4MJw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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