{
  "manageEntity": {
    "action": "Repost",
    "entityId": "721891",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0xa27c416711237e8d174371cfc2f7650cae61b355af57591652ac9bbac518c767",
    "signature": "0x07760cde67fa4227f9035f1befafe3f2615df5e9e122c6d1b773e7648665a19562aa3f7c063136a5770014b99eea929f133cb6053187a68068602b54aa236def1b",
    "signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
    "userId": "981716494"
  }
}