{
  "manageEntity": {
    "action": "Repost",
    "entityId": "1449030213",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x81776488191cff1f57d8100400d6ec54ce7a0ab807e1f51b19a3e9170ec5d24a",
    "signature": "0x6b15e14dd95f34e094e384d5291f108f60f5705386f6e02afb9be9186cfec04b5dbca4cf43bb966cac797570bbf4ea7f36f8cad3e596115c9693128366cc117d1b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}