{
  "manageEntity": {
    "action": "Repost",
    "entityId": "21739",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x4b75481d8b5c1f3fa6d07634d1b6388954a8772e2024c1555d3b4f88a61f5e5b",
    "signature": "0xdec129b1090180778601d4c493715f013af138a4a4d2f9c983a7047a6ddafa9d06fe16e0d14a0138d5cc52d974c339f57d8d166c6e123564c0684f15c4bfb3391c",
    "signer": "0xE7D37531a757aEaf8B2c8037a79C03819edc20Dc",
    "userId": "870684573"
  }
}