Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'b9f6af8e3c4f4698405011cd789d98b6ee65d24cb105a84e699bafb50dc01d62' 
  AND token = 'lWoZEhl2TQOvp06l4ILuZD1qMOAEhYmMlERfjMf3FaU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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