Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '89e9818e968804c6a672b56382f6b185121541f1db653b767fa6dce3551fc64b' 
  AND token = 'B++4xSF5YPlxcd+PShXiNN9Xpv0vBPzgX7TwPfEa9eI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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