Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2f896b473db8128d159772a7ba5d7356fdcae3231024e87fce487e2e8182de33' 
  AND token = 'HnNmxp5pQ6UgAaTNHQ30Ww5eP1Ws9MyAWdNQ7T1PriM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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