{
  "manageEntity": {
    "action": "Save",
    "entityId": "806980720",
    "entityType": "Track",
    "nonce": "0xfa6613a1a2371d8b0b121a37f5b0b2a1e075b102065e3d5c67788cc3a7bfe64c",
    "signature": "0x71d4f026e2d2ddeee6fbd32e07878b9dd98a30742399b3a1ca0b5bf58d51256b65de92b2629fa847ff370a4389e4cd757bee3f3f3c0d389b8d12b3aca206483e1b",
    "signer": "0xC6f6979d7215C4611Cd7aDb30a42B2812294262c",
    "userId": "55290787"
  }
}