{
  "manageEntity": {
    "action": "Save",
    "entityId": "1155911866",
    "entityType": "Track",
    "nonce": "0x20d4ccda561d2f8c5429a720d379d0e603d304e02334814ad29f17925361dd86",
    "signature": "0x238ff930e054eb3618e62b8049cd171a621982c30f57a38475610df902aa8b8204db1a874873fef14368327f31d0a625e22e27abb2a4e778e2679011ce9b0d971c",
    "signer": "0x27204C77Baa4a510c92A96A4ba3661CC53EE568E",
    "userId": "35918963"
  }
}