{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "1128635",
    "entityType": "Track",
    "nonce": "0xf0bd4b37b782e130c9ab96455b8e5a744ffa8e003167858f66844757307f84a9",
    "signature": "0x551d3875af38f0bb8ec12c2ddd5b39e7349de89ab52bdacd81d6f956fbb52e98024807d4221498aac4513394104fc861ad6b5c410e94296f3ef7b26d19823a061c",
    "signer": "0x7643Ac8a6B22D0c4aAFADa310e747FCa882c1417",
    "userId": "1430568"
  }
}