Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '03e30ee77735f409bb3ecf7c4a6973ccb4f3262507be2ca97caa4cf4cc01dc60' 
  AND token = '04t1L7dq0q8R50vKe7uLv8pwGZnP0tfpo5JyvWGCJOE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00048

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}