Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'cfb1defe296977042382b9c25277ec983645b08b5bfb292c81d333824f2e90ba' 
  AND token = 'oqzFBkfJ0EknMqTcRErRUloNg9ikf9Xffar6Ns4Cgpo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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