{
  "manageEntity": {
    "action": "Repost",
    "entityId": "1439416591",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x6392fcd1c40fc3451fdad8fb3b3b1717223fc3c704b0cceb7c28ff0a0cb9924d",
    "signature": "0xdc3b32863ff96c1f64685053073658cd5aca291ec8b6ffe7ac860d221e2db5c13ec4070a745595eb477b54382f77ee5ba08475c18813d1276c7eed0282b35c041b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}