{
  "manageEntity": {
    "action": "Save",
    "entityId": "184326516",
    "entityType": "Track",
    "nonce": "0x489c96ed88d7f35eab9d3d63471fb648c153e3a7ca8cd3b6c34e62f3ab54c69b",
    "signature": "0xa5403c0d5a54a00e194b649bf9f806c4dbb67ea115722b969d98fbcebb16a56514e19f550dc5979449458d68196fdde03f8cb42207285d7b049ff43e659ce33c1c",
    "signer": "0x036B1ee0d2003ae5B5E252d58647d13f0e588EEB",
    "userId": "161353174"
  }
}