{
  "manageEntity": {
    "action": "Save",
    "entityId": "710993243",
    "entityType": "Track",
    "nonce": "0xe52724869f4f8f6df7eb497e61f155a549f4b7b32aa4d22d09d1ef098735fdb4",
    "signature": "0x1303ef079464fd12028013d790eb7680eaae6c086b00663a8f183e882229a54b00ccffa45166c48794f34d1ac2f3988081fc6d509db5ab7bf6b8bbb7061612261c",
    "signer": "0xF7628Ea36C0C266E289b7538b033fB949A6C31ff",
    "userId": "386745392"
  }
}