{
  "manageEntity": {
    "action": "Repost",
    "entityId": "644643",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x839f75870d652401f68c211aa840ce79b388aa891a4662ee43965282ab6e1ce5",
    "signature": "0xdfefff93011814d6f88eb6da361afa07b2d79f74e18847c26f3aedfd52f0823d1d612baa61514e225bc4acf1a0675af159d4d46c8781f042f6878ca40575c5061b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}