{
  "manageEntity": {
    "action": "Save",
    "entityId": "1164159967",
    "entityType": "Track",
    "nonce": "0x766266c8df54b68d5285420ca1f5c7bbfd506d36a5f7999f674d1f110c3e345e",
    "signature": "0xaf4df1e376c00d7852e8a38119f362d70030f91fd22cc13986c9da69579b6eec5b8fc8819bf7fa2f1d9390a926f124226872677229d8aca9b122efd3d91a2cc41c",
    "signer": "0xdB791822A11f5aDc830669bdADa8121a4558D7A3",
    "userId": "347139808"
  }
}