{
  "manageEntity": {
    "action": "Save",
    "entityId": "7113506",
    "entityType": "Track",
    "nonce": "0x2abd0f9fedcc560f8a643c05a4c4aac43c9f33c59ab07923ec5503590629eca8",
    "signature": "0xc0de9efaa0865693c15ba2736a84badaee1621f148ee01469618cb79f175a11a0a67b10a80a43baeeb9643f7b5b9fb56c5e860c5dec45a0923da3f39cd210f9d1b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}