{
  "manageEntity": {
    "action": "Save",
    "entityId": "120712118",
    "entityType": "Track",
    "nonce": "0xa8b1366d944deac242a9d207b9aff6a942fb61b9030c09d96ad2b93d63303ba4",
    "signature": "0x513ea0da47704720af515cf13545d1840e55499feb96975174f345a42c7af88f50c3bfa0f178baf2b23b0ae8bc5d7f7c2267409fe335d66e59524a89a92682341b",
    "signer": "0x92328BFDeD38C9a9De6E253A0CF5CB46A3B28611",
    "userId": "831117417"
  }
}