{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "133120",
    "entityType": "Track",
    "nonce": "0x3a41f5ae511ceb620eab810124bb78828e60f9801e38a6ac38095159e1892f29",
    "signature": "0xb51ce3b77f891a5b1b4e19630ad86b51334d5de24f70bc58683567c90fa0505240fcd79c51b2a0b16dd8b77b6d48c356fa6a32cab7d185c5e9f0df01a9d62ab51c",
    "signer": "0x5A76eaF1A8E613f7381695733D971a4bE9E568E1",
    "userId": "60415"
  }
}