{
  "manageEntity": {
    "action": "Save",
    "entityId": "24362368",
    "entityType": "Track",
    "nonce": "0x81d0d567eb77462ea8179c73996108895c8bc1556d9e2299b2096a896b8c7121",
    "signature": "0x6f9db30988da911b01b254ad2bc918ca34a1e9984f8fedf0e4051ae8e10988911cc82737e43434b1cf9c5ef7033b67fd822de3e27ea1c102cdfdf430d51125781b",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}