{
  "manageEntity": {
    "action": "Repost",
    "entityId": "1504574049",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x5771d0122b45f7aab58478e2880ad1aa23952bc17ca78b8c7b503759dd5b16cd",
    "signature": "0xe1b1e799e5d4d3ad8eecf884edf9c043160d7260f7d76fd047947059fdb555a22b2d2160db4016b555e6697c47e054aa29f038650db5f718a36c5fd52a0d9f791c",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}