Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'b0429138938a9fdf490fc2f08a3ef41f2389016afb33452643ac9c32efa62005' 
  AND token = 'h/5hnFeAmK52vKteHRpjoxELQMOGAMnnXJF9k2mhrQc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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