{
  "manageEntity": {
    "action": "Save",
    "entityId": "1470786980",
    "entityType": "Track",
    "nonce": "0x26a3025bc1036b9f578a96e61422cb85db773936e1ddd9f7e0de5bac0ae58ec6",
    "signature": "0x8daeb52020bc69a9a9681200dcb7f45613b2d390c5c336b119c5159793ea4269036c50df05274a7e69feaf8e18936dd22d1632f41fbd6a17d6e8d7aca899ce0e1b",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}