{
  "manageEntity": {
    "action": "Repost",
    "entityId": "721788",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x8c369f3eb54b853a70e0b81994b8ed6843c6505033d8333d6ea88f7e96c9fa76",
    "signature": "0xd3377221a350cf1a9180c07d960039c33c3f54e33542b7dcac66656d8772766c3cb458dd92efb23d11fd6eed806c6fa27209f58165890743894da84c6ca20b841c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}