{
  "manageEntity": {
    "action": "Save",
    "entityId": "937698",
    "entityType": "Track",
    "nonce": "0x826aca02c9a8287fcccbdf08100fb315c3fd8a81a9388238a0fc3de8e67163d3",
    "signature": "0x3cba6eeb682d40d214afe89c09e01de99dcf0124326dce9fdf1cf1c850bff0d70bb9c64ac3e970fbf65a99cad138e42047eb964bb06ee890c0ffdbc5498e17bc1c",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}