{
  "manageEntity": {
    "action": "Save",
    "entityId": "367009503",
    "entityType": "Track",
    "nonce": "0x7f4c26bf5fb0de5325c713ebf52aa3fc150bd9853c832d5b50e4f3251a61707b",
    "signature": "0xd79749e49c5644e3477e67728e5d0aa50659dd56cf662a11f2b0c0a35486043c421e5ae119385e9bb1d3d4b7af0e00ce55b73facd3ab6612705fe83235f7487b1b",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}