{
  "manageEntity": {
    "action": "Repost",
    "entityId": "1399764675",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x2e11e7ec5cfda4886f0cb83587d93fcec6e89a9362d21b417ef9da470f2bf63d",
    "signature": "0xc3e73c29916edd8179a1f283ac30dcc78ff24b798931582ede1de8a7855d6f1f66a211edd9439b56948ca38ff9c1b1c1a6a7d220ed6dabd652d98a12d307fb291b",
    "signer": "0x40aE1C539711FBaE3930131b028D9c764fD8EaCb",
    "userId": "35251"
  }
}