Example response

{
  "providers": [
    {
      "accept_new_contracts": true,
      "address": "0:FD595F36B4C1535BEC8461490D38EBB9AE3C38DD6ACE17CA63ABE2C6608BE159",
      "max_span": 604800,
      "maximal_file_size": 10485760,
      "minimal_file_size": 64,
      "rate_per_mb_day": 50000000
    }
  ]
}