{
  "manageEntity": {
    "action": "Save",
    "entityId": "1153113035",
    "entityType": "Track",
    "nonce": "0x51f8eaaa8d8e672f5e05c16aa6b585c660683e0f91c20aa756618351661169be",
    "signature": "0x174b6c19d28331d4f27b6e5cd717a2f775bc03c1f89ef91b84eb2962aead4a6553b8517315a348acc884a1781fa627c3446c402ca1af3dbbae167b81629677c21b",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}