{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "2135712386",
    "entityType": "Track",
    "nonce": "0x3d4942e3ce78fee2e335020708838e9d149b7f8434cd8e51eadb7afe701286b2",
    "signature": "0xe097b1b6576de6ed86b739eddf51d28176fba0290474c48847f011cb788c4e0c01c0695a4aa47a2a7113f2046080d243191e338b861b3c38d9e19d7d75c75b811c",
    "signer": "0xE9e4A57bb74F837875858a9bA11030fCbAc09A44",
    "userId": "469412615"
  }
}