Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2a48807dcbb305bd504aea9f434f22a55baea650c28dcc6012c63c07ecc8f633' 
  AND token = 'IBFUiTpFcN+LcClb9d9llrMpKFeDqke3sDcy9e338Go=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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