{
  "manageEntity": {
    "action": "Repost",
    "entityId": "521386606",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x14c83da87718812c53055a52a33ff7f71d6fcb44012e93be8f4ba7984fef6cc4",
    "signature": "0x54c06e724654bfe88ca67b93b6531646e7037b876320a90eeca0f4027c342fde213545ce4297a23fd59de9652f583826f12727a7bc7cae16b786dac5c6cb3b171b",
    "signer": "0x45C74e4f36E4e5064C5321eeED3748fD52B04eA8",
    "userId": "133970929"
  }
}