Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '07007d5bc6b453fb8b81ca173b4c28725ea1c6562c94b5043711fc912a1d2940' 
  AND token = '1ROJUDS4bkmKgMlPIsTviTFycKYTD6QGKj28o397mGA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00057

JSON explain

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