{
  "manageEntity": {
    "action": "Repost",
    "entityId": "648909",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x37f55bfcf442bc79ccd75a59407d5ce60f984bfffe1475a5fcb78509d92828f4",
    "signature": "0xe19a3a693f2e9a9ac4b10271d796180021d42b4e43773040cee1de664de842f525fef180c80424125fe9a6bcc4694e516532de9f3d7b2407a13ec20be98fc1831b",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}