Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '13a3ad584f8d78ec1fe151ebf7b6e5e21a9ea98b3d746a393789073534d5c335' 
  AND token = '1MgIy8ssCKt41a2Xp5J7sfG41dmLkO3ojfFNvEfpysc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00042

JSON explain

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