{
  "manageEntity": {
    "action": "Repost",
    "entityId": "421596682",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x99225028c386ea92d7486dc43bf4de88282249d990632de798a7bc7f6afcfe13",
    "signature": "0xc307b9f7e9c7158f3504dc3a05a5b72190b1bb6f6386d3ba33f1e7aba60e08304069117995d3d085ff2fe5dbebe34e42c00be6ce1fb2c58554f88739ae5b28421b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}