{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "28298021",
    "entityType": "Track",
    "nonce": "0x3eb6193d9d8b6a1a9970f44cd98da0868f24fc4eeb18999fa32e001f384e6e13",
    "signature": "0xd88a71ea84dc79532f5f29604fbf4d789ae3b2b7b36dd7b2d571e7eb32cfbfbb5f73479ba070990bb83434b00cce32ad6c582a5a2d4ff42954c560e3f5bbf84b1b",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}