{
  "manageEntity": {
    "action": "Save",
    "entityId": "776080010",
    "entityType": "Track",
    "nonce": "0x20c00236c720bcada5a5dd5f81c194245a1ca3f6863f5c4f8bf243fd438d69e6",
    "signature": "0x6529ef379e89d973a809080075be139fdb211530e5e97ea6f3d7764bc8de82207e80e2b1c40bab30c29b52cad3c0fb002e4a2ec1c8a4904ecbe7029baedc0fee1c",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}