Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'a774e5b5940a6e9947323c5f5d984d90c17c678d227aa48c5f4c5c80da97317e' 
  AND token = 'H5sjy5caDQrl4flfnK4Xh8T12TRvE/a1OhsSNrHS8qU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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