{
  "manageEntity": {
    "action": "Repost",
    "entityId": "1504561498",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x89dc4ee1e5712ce669d50d187e645e5254ead336c2d4e8e2515933dc7037c47c",
    "signature": "0xd0b786db6f8ef8e5c34d3c030ec90a667c261e6aa7a7d786606a9a5bf9bb43f62b89fd5887393d683cf3641253f9f541f3a25f22cce823eb83900e24a56dad691b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}