Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '22d64776223134ab15956f67b04aab31dea940a81745506faea80389945b8257' 
  AND token = '1yXvHi+P+xND3a9OUS6gnq199ukSOO8MnK9fpTC03P8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00051

JSON explain

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