{
  "manageEntity": {
    "action": "Repost",
    "entityId": "521108607",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x1828282ab3199126ae49c037bc8e56b8898d1689e86436c1bd87dee6051cd80a",
    "signature": "0xb41de0506c1596c9cce1d9d7dd01229c21935bd48422043cf4c23a2d2f14e4825b77873805edea1afdaafb6f0ee94025567d8049177c85abe23e9a3897b453ed1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}