{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "1310306759",
    "entityType": "Track",
    "nonce": "0xd980a64b3c38c31889dbf0b62035ea0e8f2bdff6212484050e03119a332a6007",
    "signature": "0x3fcaf07270b91637473e5222c8192b76261f25ad4c8903da4eed587b7c1103b36b45bcf5c46204f5a81c9b0736c4a0527d652b5c82ed41175a01456309549c161c",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}