{
  "manageEntity": {
    "action": "Save",
    "entityId": "2064704843",
    "entityType": "Track",
    "nonce": "0x0f26e9c6d168c25f0b7d0f8a6683f454c000b82ed2cc2d63ee238e2f77288582",
    "signature": "0x57fc2a25e208f2a93938cab4bbd85ac35a0bcc7569619e8281349586ab518fe55f6e6655b14595336a8a349e6c6c139b714f4cf7598e0536c730b90e270a31051c",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}