Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '6044ab52685b6658e41063c54751e34f81b2724ac418122341c0fc03eba5be16' 
  AND token = 'lm349lkxWeG5FfJBq21nZrycLffl4zoWq6r/dIoftZE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00034

JSON explain

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