Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'eb0edfbb5ce1219cd10ac7ada5f46cd4a6d4dc73cbadc2ca27d45f1c6b4e194f' 
  AND token = 'EuHu+BjMnK6lxvDFxubxyvrpfGxNuLzo5+9n1Riaq14=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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