{
  "manageEntity": {
    "action": "Save",
    "entityId": "1824939775",
    "entityType": "Track",
    "nonce": "0xb0ee862823bc2453afa2ca75c3944ddc22b276acb52e322039125d1327587365",
    "signature": "0x0f66ea24e9e1ded6916e81b03ddf1c27e2f2a20dab59bf290029df902382cd87516abae79c3bd36e780a01e48bd7b70a913b2d82aeb3da34e0ff0a62c33950b51b",
    "signer": "0x0168976438910D2f5330323a0d0141Fb4Af95032",
    "userId": "317847"
  }
}