Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '115b7b89665f15fdb94319b6eebb4c7240ac4eee15cef8312d361a6c133374c7' 
  AND token = 'rcEg0gdxYdG0e+74xdKki+T+mSH/IneBplUeYJdH5gI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00016

JSON explain

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