Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '8c0b401069d1ecc1e09eff42295f90500a8a40dbc3a94e52ad330ce4f2e84717' 
  AND token = 'weRPF4BkVwU7OOguW2Gu6rhvGmRzq3gjncuzeYeBBfk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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