{
  "manageEntity": {
    "action": "Repost",
    "entityId": "644318640",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x1b0305db25481a1734618f74af439e23bdf2a353781a96d7513719594b7694ee",
    "signature": "0xaca5d32b8f0865925bac17c2a408db3739503395309f2007720b7116813d90b965b85475f65f05989a21fe651cc19f7233ca6a23a12b8cc81d3d0f1557ef51461b",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}