{
  "manageEntity": {
    "action": "Repost",
    "entityId": "643225750",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0xc54824929e8f5f1e9f74d78dca394300833f4d2b9550f70409c81295d4e9d1e5",
    "signature": "0xbdb60132835b009be5a3e3bb14693c5b567b77d43f37872a13c71ec6cc2ab43901f3ed6afeae951374cb78edb8688f4ae37cb0d716e18e058887fe07986dcbba1b",
    "signer": "0x9de29362DF595E6949CaA2820c5c28c3D6b0CEe1",
    "userId": "857551474"
  }
}