{
  "manageEntity": {
    "action": "Repost",
    "entityId": "721532687",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x44d6d1245893ae0fa3447fe478a20becd3a7ac70a968b242c0071a0c384d96a7",
    "signature": "0x9383310999b640bd7de1ddfc07da7abf72f9d90428cdcc02e653ac8b3da6b56103a54ba2c90dc7be771fdd3fae38e270472d988c4ba2a0e389fb93080c8442fc1c",
    "signer": "0x59765b22C96E88dA578af23E8611d6ca2dcCd7C9",
    "userId": "377610060"
  }
}