Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '3152cb5ded29979dc0fb3bb4f9aba2402a47f7ed4929d1004a63626c8b6627dc' 
  AND token = 'zLsyd1iroaUtpQKHeCXJZNp58ZaMu8KlmsWjMRsN4BQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00047

JSON explain

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