Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '698b14d92d69a438f4acbaadb5cdf78bca7e4b1e5d3defb823fd63b8e8d0dfe0' 
  AND token = 'IPnjn0o/aceeRelg8xKpLfsVe9U1H6YmsInTpWrxaD0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00021

JSON explain

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