{
  "manageEntity": {
    "action": "Repost",
    "entityId": "453577416",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0xd4d7ab113817ade9a5e97fb0fc6c37d9efd2f7522e27eadb5223cda30034f8fe",
    "signature": "0xf5f29f1eac0ca674e9a8f89478fd2b18f705c61bee7f283d52ebd5a968ef8a5806fa6f3e485076455e3454edadbb88ca1b6e0a71b76a4c24d33652e9d5ce89a11b",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}