{
  "manageEntity": {
    "action": "Save",
    "entityId": "80377902",
    "entityType": "Track",
    "nonce": "0x696b044ad47ce6c9e4ac05d5cc2f13be14f294f25d6e993a5a24baf3a9d0df49",
    "signature": "0x6ff88f564d5c752c601d39e816a676d4636699b235ee580b90eb07393510ff7511fd7dc5be617ba0673061bb7b6fe8019e20efd86bad0f7b809389fade9fe6b71b",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}