{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "1910072935",
    "entityType": "Track",
    "nonce": "0xbbcfa62172ed969c73772c60b4b43e8dc5d27fdaa4ac8a3b37a3626d161262af",
    "signature": "0x1f33ffb03e5ced9817458dd46757b9b586435757aca9e22883796e8d8070da9c430fe8b14b9adfed8213bd99944d3d1514ab4016f8473c1d70bb4a951c0b53d91b",
    "signer": "0x56C5E5DCe17ADFa53847380A43F72eD419649E27",
    "userId": "379639686"
  }
}