{
  "manageEntity": {
    "action": "Repost",
    "entityId": "521386606",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0xb6ef424e60dd6b553e46c4534c3ddbd7a5df8c7644e6337662fd6b657741dfac",
    "signature": "0x6a453274a7fa774042dc03d02a45233ab4906214d90f403afa37eab81a27138c033e1ed7811eed1f73709ec7422bacdceb4512d7a97a73aa658da16fb77add411c",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}