Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd02a96a0f32d03f36d9f52a197d1303c705f6d819b99a8637b9cb410214625a3' 
  AND token = 'OejlKRNsBDFaFTcZKO+FDAQXwocIft6mdNEMtHigEtc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

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