{
  "manageEntity": {
    "action": "Repost",
    "entityId": "578791",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x8cb27bce46e8d110abf7966d011dd6c3575f4f84d71b0375fbd29d35c7676ee1",
    "signature": "0x2e1e39361a4253959f778f5c5a05497719ef3b7ede48e584d5739ed1865286bd5b927d0c7e77976de6fa0c43b4e9e787c255d6dae3ea1ba6a2a8bd43c10f2dfc1b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}