{
  "manageEntity": {
    "action": "Save",
    "entityId": "2048634756",
    "entityType": "Track",
    "nonce": "0x0a791125f82cd4d9160a7b35177498a1eac45a7fed44099e0ed6be803e95927c",
    "signature": "0xdc47c19ebb0b831d01c9c29dfa97aba711cd32e5e62dc88a09b1a0134cc8a52261c85344597895ac73b9e7d624c7d745b7549bdf5d92fdc00182ec90b3892bf71c",
    "signer": "0x616810C6C7bdfF44008229BBe24fd212CC6d62Da",
    "userId": "822716103"
  }
}