{
  "manageEntity": {
    "action": "Repost",
    "entityId": "519224107",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x2e48a3618dbfadf97fb5de645ec6995f6ca8be54e41bf6c40c5aad8aaaea9896",
    "signature": "0x19002da9ce4306f684a86507bc08e81ce39f190e84dab1e32368643120cc68455efe21a9bb341a554da54d7f48ee384f3427d930aecbb1360835f7d7e7ebf0131c",
    "signer": "0x03b70C3825d7b9e568C53C89a738061d855d0dec",
    "userId": "578849678"
  }
}