{
  "manageEntity": {
    "action": "Save",
    "entityId": "1828956713",
    "entityType": "Track",
    "nonce": "0x6fd60d78f9d2151d99fcd625ddbb90debf91c152ac1c1acac29b1c795476e3f2",
    "signature": "0xe0377016defee2a7ee8eab493d6ee40603fa0d48999c6a3b334f544ea1048a8b75946a4394a26f838dde782119c40b0ac3cda52d5f0dd5b9530629b7650a9dc31b",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}