Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'a3b887cc578fff28ee149c0de0a88a8e647d445b36944ccced415d733cbb17ea' 
  AND token = 'tNmvA5tf/uaQPBH8KCfM4gxNbrKZiqHu6HLtXGd6EBc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00024

JSON explain

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